Darren Criss & the Dalton Warblers ft. Katy Perry - Teenage Dream

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Victoria Secret 2010 - Katy Perry - Teenage Dream, Hot N Cold, California Gurls

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Katy Perry - Making Of “Hey Hey Hey” Music Video

Katy Perry: Last Friday Night (T.G.I.F.) | movie | 2011 | Official Trailer

Darren Criss sings Teenage Dream

Katy Perry ft. Kanye West - E.T. [Trailer Official]

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Katy Perry - Choir Surprise Despierta con Crystal Lewis (Witness World Wide)

Katy Perry - Last Friday Night (T.G.I.F.) (Official Music Video)

William ft Britney Spears Scream Shout Full Song

Teenage Dream With Me and Katy Perry

Katy Perry chante son tube "Teenage Dream" en live

Katy Perry ft. Kanye West - E.T. (Official Music Video)

Chris Brown - Party

Katy Perry - Rise (NBC Olympics official video)

Katy Perry - Firework

The X Factor UK 2013 The Final 11 sing Roar by Katy Perry Live Final Week 10

Katy Perry - Not Like The Movies & California Gurls HD

Katy Perry - LIFETIMES (Official Video)

Chris Brown Ft Brandy Put It Down Official Audio

Saturday Night Live 2013 Katy Perry ROAR Live FULL PERFORMANCE

Beyoncé - Run The World (Girls) Live - X Factor France 2011

Calvin Harris - Feels (Official Video) ft. Pharrell Williams, Katy Perry, Big Sean