Video: Katy Perry Fights Crime - With Cats! - and More of the Week's Top Viral Videos

Video: Katy Perry Fights Crime - With Cats! - and More of the Week's Top Viral Videos

Video: Katy Perry Fights Crime - With Cats! - and More of the Week's Top Viral Videos

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Video: Katy Perry Fights Crime - With Cats! - and More of the Week's Top Viral Videos

Video: Katy Perry Fights Crime - With Cats! - and More of the Week's Top Viral Videos
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Katy Perry fights crime with the help of some cats, Gerard Butler discovers a new way to crack nuts, Diddy delivers a baby, and Brian Williams raps. It's all in this week's celebrity viral videos!">