Katy Perry Fights Crime With Cats! — and More Celebrity Viral Videos | POPSUGAR News

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!

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Katy Perry Fights Crime With Cats! — and More Celebrity Viral Videos | POPSUGAR News

Channing Tatum"s Behind-the-Scenes Outtakes and More Celebrity Viral Videos!

Obama’s special call, Channing Tatum’s behind-the-scenes outtakes, and Mad Men’s spin on The OC. It’s all in this week’s viral videos!

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Channing Tatum"s Behind-the-Scenes Outtakes and More Celebrity Viral Videos!

Diddy Does Downton and More Celebrity Viral Videos! | POPSUGAR News

Dr. Tobias Fünke and Diddy pop up in the most unexpected places, Darren Criss sings ’90s TV theme songs, and Star Wars gets spoofed yet again. Who’s ready for this week’s best celebrity viral videos?!

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Diddy Does Downton and More Celebrity Viral Videos! | POPSUGAR News

The Best Celebrity Viral Videos of 2012!

Celebrities and the Internet — a match made in YouTube heaven! We’re reviewing 2012’s best online antics featuring and inspired by some of Hollywood’s biggest stars, like Justin Bieber lip-syncing a certain catchy Canadian tune or a Snuggie-clad kid counting down his love for Beyoncé. From Gangnam Style to slow jams, we’ve got the most addictive and influential celebrity videos in this PopSugar Rush!

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The Best Celebrity Viral Videos of 2012!