Sign in to NFL Now to watch the best of the NFL, personalized for you

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

Pop Sugar 2:52 mins

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!

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!">
View Comments (0)