Katy Perry morphs into a series of characters in the preview clip for her new music video birthday. Katy transforms herself into the characters named Goldie Dancer, Yosef Shulem, Kriss The Clown, Ace The Animal Trainer and Princess Mandee. Each character she becomes is hilarious and has their own unique personality. Also, none of these characters look like the beauty queen herself! 

Check out the video below!