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WATCH: Katy Perry's official "Birthday" video is all pranks

Posted April 25th, 2014 @ 6:35am

Katy Perry cracks us up in the music video for her hit song, “Birthday.” The video is titled, “Worlds Worst Birthday Party Entertainers.” She dresses up as a old stripper dancer, an MC, a bad clown, an animal trainer, and a princess!

Check it out: 

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