Get "Birthday" from Katy Perry's 'PRISM': http://katy.to/PRISM

Katy Perry Complete Collection on Spotify: http://katy.to/SpotifyCompleteYD
Katy Perry Essentials on Apple Music: http://katy.to/AMEssentialsYD
Watch your favorite Katy videos on YouTube: http://katy.to/MusicVideosYD

Follow Katy Perry:
Website: http://katy.to/WebsiteYD
Instagram: http://katy.to/InstagramYD
Twitter: http://katy.to/TwitterYD
Facebook: http://katy.to/FacebookYD

Lyric video for Katy Perry’s “Birthday” from ‘PRISM’ produced by Mandy Sellick and directed by Aya Tanimura.

Music video by Katy Perry performing Birthday. (C) 2014 Capitol Records, LLC