This video contains content from Grammys, who has blocked it on copyright grounds.
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31:32
The YouTube Interview with Katy Perryby Katy Perry Official YouTube Channel
4,894,778 views
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Katy Perry Official YouTube Channel
69 videos
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4:44
Katy Perry - Hot N Coldby CapitolMusic
83,704,242 views
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3:50
Katy Perry - Fireworks Live on the The X Factor 17/10/10 (HQ)by Lloyd Nicholls
1,002,304 views
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5:35
Katy Perry - The One That Got Away (Live on The X Factor)by EvgerardVideo
5,579,107 views
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3:42
3OH!3 - STARSTRUKK (Feat. Katy Perry) [OFFICIAL MUSIC VIDEO]by Photo Finish Records
71,629,346 views
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2:06
2011 Grammys: Katy Perryby E! Entertainment
18,169 views
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3:54
Katy Perry - Fireworkby Katy Perry
366,623,575 views
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0:50
Oscars 2011 - Russell Brand, Talks Katy Perry, With Mom, Kisses Journalistby Anne Thompson
5,265 views
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3:15
CNN: Katy Perry brings granny to Grammysby CNN
9,901 views
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2:33
Katy Perry sings "Hot N Cold" with Elmo on Sesame Street!by Katy Perry Official YouTube Channel
53,047,204 views
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1:45
Katy Perry's Married Lifeby TheEllenShow
1,372,775 views
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1:06
Katy Perry California Dreams Tour 2011by KatyPerryMusic
483,497 views