First it was Justin Bieber and his mates - now Katy Perry's followed suit and made a "Call Me Maybe" video with some of her friends.
Rocking her new purple hair fresh from Coachella, Perry and her friends - including Raising Hope actress Shannon Woodward - look like they're having a blast as they mime and dance along to the video.
There's even a giant inflatable monkey and slow motion moves!
"We love you Justin Bieber," Perry says at the end of the video.
How do you think Katy Perry's "Call Me Maybe" stacks up against Justin Bieber's?
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