Katy Perry | Official Site
American Idol' Alum 'Still Traumatized' by Katy Perry Critique
Katy Perry's Not the End of the World music video stars Zooey Deschanel as herself | EW.com
Katy Perry explains her 'glitching' eye after video of performance goes viral | Fox News
Connect the dots! Katy Perry tries to recall the party of her life in her Hangover-inspired Last Friday Night video | Daily Mail Online
Katy Perry - "Last Friday Night (T.G.I.F.)" official music video teaser - YouTube
Last Friday Night (T.G.I.F.) - Wikipedia
Count The Celebrities in Katy Perry's New Video, 'Last Friday Night (T.G.I.F.)' | TIME.com
Sexy Katy Perry Music Videos | POPSUGAR Entertainment
Duolingo Shocks Twitter With Suggestive Katy Perry Tweet – Billboard
Katy Perry's Top 10 Music Videos: Critic's Picks | Billboard – Billboard
Katy Perry: Last Friday Night (T.G.I.F.) (Music Video 2011) - IMDb
Katy Perry's Last Friday Night (T.G.I.F.) by Marc Klasfeld | Videos | Promonews
The guitar seen in the video of Katy Perry Last Friday night | Spotern
Katy Perry Cries on American Idol for Shooting Survivor: U.S Failed Us - Variety
Katy Perry: Last Friday Night (T.G.I.F.) (Music Video 2011) - IMDb
Katy Perry: Last Friday Night (T.G.I.F.) (Music Video 2011) - IMDb
The battery in the video Last Friday night Katy Perry | Spotern
Katy Perry's 'Not The End Of The World' Music Video Explained
Katy Perry: Last Friday Night (T.G.I.F.) (2011) - Filmaffinity
Katy Perry - Last Friday Night (T.G.I.F.) - video Dailymotion
