Get “Last Friday Night (T.G.I.F)” from Katy Perry’s ‘Teenage Dream’: http://katy.to/TeenageDream

Katy Perry Complete Collection on Spotify: http://katy.to/SpotifyCompleteYD
Katy Perry Essentials on Apple Music: http://katy.to/AMEssentialsYD
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To help celebrate the one year anniversary of 'Teenage Dream', Katy wanted to give you an exclusive look behind the party of the year! Hear from all the guest stars of the "Last Friday Night (T.G.I.F.)" video including Kathy Beth Terry, Rebecca Black, Darren Criss, Kevin McHale, Hanson, Debbie Gibson, Corey Feldman, (Uncle) Kenny G and Richie Nuzzolese as "The Jock".


Music video by Katy Perry performing Last Friday Night (T.G.I.F). (C) 2011 Capitol Records, LLC