Katy Perry - #VevoCertified, Pt. 7: Katy on California Gurls

Katy Perry is #VevoCertified! 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