Katy Perry Birthday Mp3 Download 320kbps -

Published: May 2026 | Category: Music Downloads & Audio Quality

If you’re a fan of pop music, you already know that Katy Perry’s Prism era delivered some of the most infectious, feel-good anthems of the decade. Among them, "Birthday" stands out as a vibrant, celebratory track perfect for any party playlist. However, searching for a "Katy Perry Birthday Mp3 Download 320kbps" requires more than just a quick Google search. It demands an understanding of audio quality, legal sources, and how to distinguish legitimate downloads from low-quality or risky files.

In this article, we’ll explore everything you need to know about obtaining Katy Perry’s "Birthday" in pristine 320kbps MP3 format, why bitrate matters, and where to find the safest, best-sounding versions.

Some users attempt to rip audio from YouTube or Spotify using converters. While technically possible, here’s why you should avoid it:

If you already own the CD or vinyl, you can rip it to 320kbps MP3 yourself using software like Exact Audio Copy (free) or dBpoweramp (paid). This is legal for personal use.

Get the party started! Download Katy Perry’s hit track "Birthday" in high-definition 320kbps MP3 format. As one of the standout tracks from her chart-topping album Prism, "Birthday" is the ultimate disco-pop anthem perfect for your workout playlist, party mix, or personal collection.

Released in 2013 as part of her fourth studio album, Prism, "Birthday" is a song written by Katy Perry alongside Dr. Luke, Max Martin, and Bonnie McKee. The track stands out for its funky disco influence, mixing modern pop production with a throwback vibe.

Lyrically, the song is playful and flirtatious, making it a go-to track for celebrations. The music video became viral for its "Birthday Pranks," where Katy went undercover as various characters at real birthday parties.

Before diving into downloads, let’s address the "320kbps" part of your search. Not all MP3s are created equal. Bitrate refers to the amount of audio data processed per second.

Why choose 320kbps for "Birthday"? The track features layered percussion, synth stabs, and a celebratory crowd effect. At lower bitrates, these details blur together. At 320kbps, you hear every shimmering cymbal and background harmony exactly as producer Dr. Luke and Katy Perry intended.

Searching for "Katy Perry Birthday Mp3 Download 320kbps" is the right approach if you value audio fidelity. Don’t settle for tinny, compressed versions from shady websites. Spend the $1.29 at a trusted store like Amazon or 7digital. You’ll get:

Whether you’re planning a birthday party, curating a workout playlist, or simply appreciating Katy Perry’s production genius, high-quality audio makes all the difference. So go ahead—celebrate the right way. Download "Birthday" in 320kbps, turn up the volume, and let the good times roll.

Have you already downloaded the song? Share your audio setup and listening experience in the comments below. And if you found this guide helpful, check out our other articles on downloading 320kbps pop classics safely.

Happy listening and happy birthday to you (even if it’s not your birthday yet)!

Katy Perry is a renowned American singer, songwriter, and television personality. Born on October 25, 1984, in Santa Barbara, California, her birthday is a celebration of her life and achievements in the music industry.

Katy Perry, whose real name is Katheryn Elizabeth Hudson, rose to fame with her hit single "I Kissed a Girl" in 2008. Since then, she has become one of the most successful artists in the world, known for her catchy and upbeat songs, as well as her powerful voice.

Some of her most popular songs include "Firework," "Roar," "Dark Horse," and "California Gurls." Her music often deals with themes of love, empowerment, and self-expression, resonating with fans of all ages.

Throughout her career, Katy Perry has received numerous awards and accolades, including multiple Grammy Awards, American Music Awards, and Billboard Music Awards. She has also been recognized for her philanthropic work, particularly in the area of LGBTQ+ rights and education.

If you're looking to celebrate Katy Perry's birthday with some of her greatest hits, you can find her music on various streaming platforms or download her songs in high-quality formats like 320kbps MP3. Here are some of her most popular songs:

Katy Perry's music is widely available on streaming platforms like Spotify, Apple Music, and YouTube Music.

Report: Katy Perry Birthday MP3 Download 320kbps

Introduction

Katy Perry is a renowned American singer, songwriter, and television personality. Her music has been widely popular across the globe, and fans often search for her songs, including those related to her birthday. This report provides an analysis of the search query "Katy Perry Birthday Mp3 Download 320kbps" and related trends.

Search Volume and Trends

According to keyword research tools, the search query "Katy Perry Birthday Mp3 Download 320kbps" has a significant search volume. Here are some key statistics:

Related Searches

Analyzing related searches can provide insights into user behavior and preferences. Here are some searches related to "Katy Perry Birthday Mp3 Download 320kbps":

Top Songs and Downloads

Based on music streaming platforms and online stores, here are some of Katy Perry's popular songs that users might search for:

Download and Streaming Options

Users searching for "Katy Perry Birthday Mp3 Download 320kbps" can find her music on various online platforms:

Conclusion

The search query "Katy Perry Birthday Mp3 Download 320kbps" indicates a steady interest in Katy Perry's music, particularly around her birthday and holiday seasons. Users can find her popular songs, including "Birthday" and "Happy", on various music streaming platforms and online stores. When downloading MP3s, users should ensure they use safe and legitimate sources to avoid any potential risks.

Released on April 21, 2014, as the fourth single from her fourth studio album, PRISM, "Birthday" is a shimmering disco-pop anthem. Produced by pop heavyweights Dr. Luke, Max Martin, and Cirkut, the song was Perry’s intentional "attempt" at writing something that sounded like it belonged on Mariah Carey’s debut album. Genre: Disco, funk-pop, and synth-pop.

Key & Tempo: Written in the key of B major with a tempo of 126 beats per minute.

Lyrics: The song uses birthday celebrations as a playful, lighthearted metaphor for sexual intimacy. Critical Success and Chart Performance

"Birthday" was praised for its "buoyant" instrumentation and retro gloss, with critics drawing comparisons to the works of Prince and Daft Punk. Its commercial performance solidified its status as a dancefloor staple:

Billboard Hot 100: Peaked at number 17, marking Perry’s 15th top-20 entry.

US Dance Club Songs: Reached number one, extending her record for most consecutive dance club chart-toppers.

Certifications: It has been certified Platinum in the United States by the RIAA, having sold over one million copies. The Official Music Video

The music video, released on April 24, 2014, is known for its quirky hidden-camera concept. Perry appears disguised as five different "world's worst" party entertainers—ranging from a faded Las Vegas showgirl to a Jewish bar mitzvah MC—and crashes real-life birthday celebrations. Why 320kbps Matters

The 320kbps bitrate is often sought after because it represents the highest quality for the MP3 format, offering clear, detailed audio with minimal compression artifacts. For a track as layered and "disco-drenched" as "Birthday," this quality ensures every synth wash and rhythmic break is crisp. Katy Perry – Birthday Lyrics - Genius

Katy Perry’s "Birthday," a track from her fourth studio album Prism, is a disco-infused pop anthem celebrated for its upbeat energy and playful lyrics. Upon its release, it was a staple of radio airplay and digital storefronts. However, the specific addition of "Mp3 Download 320kbps" to a search query indicates a user looking for "CD-quality" audio—the highest standard for compressed MP3s—without necessarily navigating through official channels like Apple Music or Spotify. The Shift from Ownership to Access

The phrase represents a legacy mindset in a streaming-dominated world.

The Pursuit of Quality: In the early 2010s, "320kbps" was the gold standard for audiophiles using MP3 players. It represented a desire for a premium listening experience.

Piracy vs. Convenience: While streaming services now provide high-fidelity audio at the tap of a button, search terms like these often lead to third-party "YouTube-to-MP3" converters or file-hosting sites. These platforms bypass the royalty systems that pay artists and songwriters for their work. The Ethical and Technical Risks Katy Perry Birthday Mp3 Download 320kbps

Searching for downloads in this manner carries significant drawbacks that often outweigh the "free" price tag:

Security Threats: Many sites offering "free 320kbps downloads" are hotspots for malware, adware, and phishing scams.

Impact on Artists: When a track like "Birthday" is downloaded illegally, the ecosystem that supports the creation of pop music—from the producers to the sound engineers—is financially undermined.

Variable Quality: Despite the "320kbps" label, many files found on these sites are actually lower-quality tracks that have been "upscaled," resulting in muddy sound that lacks the crispness of a legitimate purchase or stream. Conclusion

While "Katy Perry Birthday Mp3 Download 320kbps" might seem like a relic of the Napster or Limewire era, it remains a common behavior for those looking to "own" digital files for offline use or DJing. Ultimately, the best way to enjoy Perry’s disco-pop hit is through licensed platforms. This ensures the highest actual audio quality while supporting the creative industry that makes such "celebratory" music possible in the first place.

Katy Perry Birthday: Celebrating the Pop Icon's Special Day with Music

Download Katy Perry Birthday Song MP3 320kbps

Katy Perry is one of the most iconic pop stars of our time, known for her catchy and upbeat songs that get us dancing and singing along. As we celebrate her birthday, fans around the world are looking for ways to mark the occasion with her music. If you're one of them, you're in luck! You can now download Katy Perry's birthday song in high-quality 320kbps MP3 format.

The Perfect Birthday Tribute

Katy Perry has a vast discography filled with hits like "Firework," "Roar," "Dark Horse," and "Teenage Dream." Her music is all about empowerment, self-love, and having a good time. Whether you're a longtime fan or just discovering her music, there's no better way to celebrate her birthday than with a listen to her greatest hits.

Download Your Favorite Katy Perry Songs

To get you in the mood for Katy Perry's birthday celebration, we've put together a list of her most popular songs that you can download in 320kbps MP3 format. Simply click on the link below to access the download page.

How to Download Katy Perry Birthday Song MP3 320kbps

To download Katy Perry's birthday song in 320kbps MP3 format, simply follow these steps:

Happy Birthday, Katy Perry!

Katy Perry's music has brought joy and inspiration to millions of fans worldwide. As we celebrate her birthday, let's take a moment to appreciate her contributions to the music industry. Here's to many more years of making music and entertaining us with her unique style!

Download Now: [Insert link to download page]

Katy Perry’s hit single Birthday is the ultimate feel-good anthem for any celebration. Released as the fourth single from her record-breaking Prism album, the track captures the essence of a disco-infused party. For fans and DJs looking for the highest audio fidelity, finding the Katy Perry Birthday mp3 download in 320kbps is the gold standard for crisp vocals and deep, punchy bass lines. The Musical Brilliance of Birthday

Birthday was written by Perry alongside heavy hitters like Max Martin and Dr. Luke. The song is a deliberate throwback to the funk and disco eras of the late 70s and early 80s. It features a bubbling synth bass, rhythmic guitar scratches, and a playful vocal performance that reminds listeners of Prince or Wendy & Lisa. Unlike some of the darker themes found on the Prism album, Birthday is pure, unadulterated sunshine. Why 320kbps Matters for This Track

When you are looking for a Katy Perry Birthday mp3 download, the bitrate makes a significant difference. Most standard downloads are 128kbps or 192kbps, which can sound flat or "muddy" on high-end speakers. By opting for 320kbps, you ensure:

Clarity: The intricate layered synths and background giggles are clearly audible.

Bass Response: The disco-thump remains powerful without distorting.

High End: Perry's signature high notes and the crisp snare hits stay sharp.

Professional Use: If you are a DJ playing this at a party or wedding, 320kbps is the minimum requirement for club-grade sound systems. How to Get the Best Audio Quality Legally

While many sites claim to offer free downloads, they often bundle malware or provide low-quality rips from YouTube. To get the authentic 320kbps experience, consider these official channels:

Amazon Music: Offers high-quality mp3 purchases that you can keep forever.

iTunes/Apple Music: Known for the AAC format, which provides 256kbps quality comparable to 320kbps mp3.

Streaming Services: Platforms like Spotify Premium and Tidal allow you to download the track for offline listening at the highest possible bitrate. The Legacy of the Prism Era

Birthday helped solidify Katy Perry’s reputation as the queen of the summer bop. The music video, featuring Perry in various "undercover" birthday party characters, has garnered billions of views. Whether it is the "Cashmere Cat" remix or the original radio edit, the track remains a staple on birthday playlists worldwide. If you'd like to dive deeper into this track, I can:

Find the best remixes of "Birthday" for a high-energy party. Provide a full tracklist for the Prism album.

Compare 320kbps vs FLAC audio formats for your sound system.

Katy Perry’s "Birthday" is a vibrant, disco-inspired pop track from her 2013 album,

. While it didn't reach the same chart-topping heights as "Dark Horse," it is widely regarded by fans and critics as a "feel-good" anthem and a standout for its high-energy production. Musical Style & Production Genre & Influence

: The song is a "modern disco" and funk-pop track. Perry has cited Wendy & Lisa , and early Mariah Carey as primary inspirations. Composition : It features a fast-paced tempo of 126 BPM. Critics from The Los Angeles Times

noted its "musically updated disco" sound, replacing traditional "cheesy strings" with sharp synth washes and funky rhythms. Impact on Mood : A study led by neuroscientist Jacob Jolij for

scientifically identified "Birthday" as one of the happiest songs due to its upbeat tempo and positive lyrics. Renowned For Sound Lyrical Content The Metaphor

: While it sounds like an innocent party song, the lyrics use a birthday celebration as an extended metaphor for sexual intimacy. Playful Innuendo

: Lines like "Let me get you in your birthday suit" and "bring out the big balloons" are central to the song's "flirty" and "cheeky" reputation. Renowned For Sound Visuals & Reception The Lyric Video : Interestingly, the Lyric Video

—which features elaborate cakes and sweets—often received more praise for its "visually pleasing" aesthetic than the official music video. Official Video Mixed Reviews

: The official music video, featuring Perry in various comedic disguises at real parties, was criticized by some as "cringe-y" or "over-the-top camp," which some believe hurt the song's chart momentum.

Birthday (canção de Katy Perry) – Wikipédia, a enciclopédia livre

Happy Birthday to the Pop Princess: Katy Perry Birthday Mp3 Download 320kbps

Katy Perry is one of the most iconic and successful pop stars of our time, known for her catchy and upbeat songs that have captured the hearts of millions around the world. Born on October 25, 1984, Katy Perry has been a dominant force in the music industry for over a decade, churning out hit after hit and breaking records along the way. As we celebrate her birthday, fans and music lovers alike are on the lookout for ways to enjoy her music, and one of the most popular searches is for "Katy Perry Birthday Mp3 Download 320kbps".

In this article, we'll take a look at Katy Perry's life and career, explore her most popular songs, and provide information on how to download her music, including her birthday-themed tracks, in high-quality 320kbps MP3 format.

Early Life and Career

Katy Perry, born Katheryn Elizabeth Hudson, grew up in Santa Barbara, California, where she developed a passion for music at a young age. She began singing in church choirs and writing her own songs as a teenager. After releasing her debut album, "Katy Hudson", in 2001 under her birth name, she changed her name to Katy Perry and released her second album, "One of the Boys", in 2008. The album included the hit single "I Kissed a Girl", which catapulted her to fame.

Rise to Fame

Katy Perry's subsequent albums, "Teenage Dream" (2010), "Prism" (2013), "Witness" (2017), and "Smile" (2020), solidified her position as a pop superstar. Her hits like "Firework", "Roar", "Dark Horse", "Birthday", and "California Gurls" featuring Snoop Dogg, have become anthems for a generation. With over 100 million records sold worldwide, Katy Perry is one of the best-selling music artists of all time.

Popular Songs and Birthday Tracks

Katy Perry has a vast discography, and fans have many songs to choose from. Some of her most popular tracks include:

Katy Perry Birthday Mp3 Download 320kbps

For fans looking to download Katy Perry's music, including her birthday-themed tracks, in high-quality 320kbps MP3 format, there are several options available. Here are a few:

Tips and Precautions

When downloading music from third-party websites or converters, it's essential to exercise caution and follow best practices:

Conclusion

As we celebrate Katy Perry's birthday, fans around the world are enjoying her music and searching for ways to download her songs, including her birthday-themed tracks, in high-quality 320kbps MP3 format. With her inspiring life story, catchy songs, and impressive career, Katy Perry continues to be a beloved figure in the music industry. Whether you're a longtime fan or just discovering her music, there's no denying the appeal of Katy Perry's pop anthems and birthday celebrations. So go ahead, download your favorite Katy Perry tracks, and join the party!

"Birthday" remains one of Katy Perry's most infectious disco-pop anthems. Released as the fourth single from her 2013 album PRISM, the track is a high-energy celebration of 80s-inspired funk and soul. Musical Profile

Tempo & Energy: The song clocks in at 126 BPM, making it a staple for dance floors and workout playlists.

Genre: It blends disco-pop with funk influences, reminiscent of Prince or Wendy & Lisa, utilizing a bright synth-driven melody and a driving bassline.

Production: In a high-quality 320kbps MP3 format, the crispness of the percussion and the layered vocal harmonies in the bridge really shine, offering a much richer listening experience than standard streaming bitrates. Critical Reception

Critics widely praised the track for its playful, lighthearted nature compared to the more serious tones found elsewhere on PRISM. It is often cited as a standout for its:

Catchy Hook: The repetitive, celebratory chorus is designed for maximum "earworm" potential.

Vocal Performance: Perry delivers a flirtatious and energetic performance that fits the "celebration" theme perfectly.

Legacy: While it didn't reach the #1 spot like some of her other nine Billboard Hot 100 chart-toppers, it remains a fan favorite for parties and events. Verdict

If you are looking for a track that captures the peak of 2010s pop escapism, "Birthday" is a must-have. At 320kbps, the production depth—especially the funk-inspired guitar licks—provides a polished, professional sound that highlights why Perry is one of the best-selling music artists of all time.

"Birthday" is a disco-influenced pop track by American singer Katy Perry

, released on April 21, 2014, as the fourth single from her fourth studio album, Prism. Written by Perry, Bonnie McKee, and its producers Dr. Luke, Max Martin, and Cirkut, the song was designed to capture a "glitter-soaked" retro sound reminiscent of Mariah Carey's debut work. Song Specifications Artist: Katy Perry Album: Prism (2013) Genre: Disco, Dance-Pop, Nu-Disco Tempo: 126 BPM Key: C# minor Duration: Approximately 3 minutes and 35 seconds Technical Data: 320kbps MP3

For users seeking a high-quality "320kbps" download, this bitrate represents the highest standard for MP3 files, offering near-CD quality by minimizing data compression loss.

Looking for that perfect party anthem? Katy Perry’s "Birthday" remains a fan favorite for its upbeat disco-pop vibes and catchy hooks. Song Overview Artist: Katy Perry Album: Prism (2013) Release Date: Released as a single on April 21, 2014 Genre: Disco, Funk-pop, and Synthpop

Audio Quality: Standard high-quality digital releases are typically available in 320kbps MP3 format through major retailers. Where to Listen & Download

You can find the track on major platforms. If you're looking for high-quality 320kbps files, official digital stores are the most reliable source:

"Birthday" by Katy Perry , from her fourth studio album Prism (2013), is widely considered one of her most infectious disco-infused pop tracks. Critics generally praised its high energy and "sunny effervescence," though some found its double-entendre lyrics a bit "goofy". Musical Review

Genre & Vibe: The song is a blend of funk-pop, synth-pop, and disco house. It features a "deeply rhythmic impulse" and has been compared to the works of Prince and Daft Punk. Critical Reception:

Rolling Stone noted it carried the "sunny effervescence" of her previous hits.

Billboard named it one of the 30 Best Birthday Songs, calling the beat "memorable" and "dance-inducing".

PopMatters called it the "catchiest thing" on the album, though some reviewers noted it felt like a stylistic "rewrite" of her earlier song "Last Friday Night (T.G.I.F.)".

Technical Details: The track has a tempo of 126 beats per minute and is written in the key of B major. Audio Quality Note

The specific query for a 320kbps MP3 download refers to a high-quality compressed audio format. At this bitrate, the audio is nearly indistinguishable from a CD to the average listener, preserving the "buoyant" instrumentation and crisp synth washes mentioned by critics at the Los Angeles Times.

Note: For the best listening experience, official streaming platforms or digital stores provide high-quality, secure versions of the track.

The Pursuit of Fidelity: Analyzing Katy Perry’s "Birthday" and the 320kbps Standard

In the digital age of music consumption, the manner in which listeners acquire and archive their favorite tracks is almost as significant as the music itself. The specific search query "Katy Perry Birthday MP3 Download 320kbps" serves as a fascinating microcosm of early 2010s pop culture habits. It represents a convergence of Katy Perry’s dominance in the mainstream pop landscape during that era and the audiophile-driven desire for high-quality digital audio. To understand the weight of this specific search term, one must examine both the sonic architecture of the song "Birthday" and the technical importance of the 320kbps bitrate standard.

Released in 2013 as part of her multi-platinum album Prism, "Birthday" stands as one of Katy Perry’s most eclectic and upbeat offerings. Written alongside producers Dr. Luke and Cirkut, the track is a deliberate departure from the darker themes of her previous album cycle. Musically, it is a vibrant pastiche of 1970s disco, funk, and 1980s dance-pop. The song is driven by a rumbling bassline and staccato guitar stabs that mimic the euphoria of a celebration. Unlike her anthemic ballads such as "Firework" or "Roar," "Birthday" relies on a sultry, playful vocal delivery from Perry, layering flirtatious whispers over a pounding four-on-the-floor beat.

The enduring popularity of "Birthday" lies in its meticulous production. The track is dense with sonic details—from the squelching synthesizers to the horn section blasts—that reward high-fidelity listening. This level of production complexity brings us to the second half of the search query: "320kbps MP3." During the peak of the MP3 download era, the bitrate was the primary differentiator between a low-quality, "tinny" listening experience and one that approached CD quality. A bitrate of 320 kilobits per second was widely considered the "gold standard" for compressed audio. While lower bitrates like 128kbps were easier to store and transfer in an era of limited bandwidth, they often introduced audible compression artifacts—distortions that flattened the dynamic range of the music.

For a track as texturally rich as "Birthday," the 320kbps specification was crucial. The song’s dynamic range, particularly the deep bass grooves and the crisp high-end percussion, would be significantly compromised at lower bitrates. The bass might sound muddy, and the intricate background vocals could become muddled. Consequently, the search for the 320kbps version was not merely an act of digital hoarding; it was a pursuit of artistic intent. Listeners wanted to hear the song exactly as the producers engineered it, preserving the glossy, expensive sheen of top-tier pop production.

Furthermore, the act of searching for a specific MP3 download highlights a shift in consumer behavior that predates the current streaming dominance. In the 2010s, owning a digital file was the primary mode of music possession. Platforms like iTunes offered legal purchases, but the "MP3 download" search often pointed toward a culture of peer-to-peer sharing and third-party download sites. This era was characterized by the curation of personal digital libraries, where users meticulously organized folders by artist, album, and quality. The file itself became an artifact—a piece of digital property that the user could move between devices, from computers to early smartphones, without the need for an internet connection or a subscription fee.

In conclusion, the search for "Katy Perry Birthday MP3 Download 320kbps" encapsulates a specific moment in music history. It reflects the height of Katy Perry’s chart dominance with a track that celebrated joy and retro aesthetics, while simultaneously underscoring the technical priorities of the digital consumer. The demand for 320kbps was a demand for respect toward the music—a refusal to settle for degraded audio in an age of convenience. While streaming services have largely automated quality control today, the specific query remains a testament to the listener's desire for a high-fidelity connection to the music they love.

Katy Perry ’s "Birthday" is a high-energy disco-pop anthem released on April 21, 2014, as the fourth single from her 2013 studio album, Prism.

The track is celebrated for its retro, "glitter-soaked" production that draws inspiration from 80s disco and early Mariah Carey. While many official platforms offer the song for streaming or purchase, users often look for high-fidelity 320kbps MP3 versions to capture the full depth of its funky basslines and synth washes. Key Features of "Birthday"

Genre & Style: A blend of disco, funk-pop, and synth-pop. Critics have compared its rhythmic pulse to the works of Prince and Daft Punk.

Lyrical Themes: On the surface, it’s a joyful celebration of a partner's big day. However, the lyrics are packed with playful double entendres, using party metaphors like "birthday suit" and "big balloons" to reference sexual intimacy. Published: May 2026 | Category: Music Downloads &

Chart Success: The song was a major commercial hit, reaching No. 1 on the Billboard Dance Club Songs chart and peaking at No. 17 on the Billboard Hot 100.

Memorable Music Video: The official video features Perry in heavy prosthetic makeup, going undercover as five of the "world's worst" birthday entertainers—including a clown, an animal trainer, and an elderly dancer—to crash real-life parties. Where to Listen and Download

While third-party sites like SoundCloud often host user-uploaded versions, the highest quality and most secure ways to enjoy the track at 320kbps are through major digital stores and streaming platforms: Streaming: Available on Spotify and YouTube Music.

Digital Purchase: High-quality downloads can be found on Apple Music or the official Katy Perry website.

Check out the officially produced lyric video for a sugary visual feast: Katy Perry - Birthday (Lyric Video) KatyPerryVEVO YouTube• 11 Apr 2014 Birthday - song and lyrics by Katy Perry | Spotify