I think this is hilarious!! Katy Perry is one of my faves & her new video for "Birthday" is going to be awesome! She is in crazy disguises, and being wild!! One of the characters she plays is a nutty clown…and when she set up this prank for her video, it was at a real birthday party, and the people there had NO IDEA!!


In a clip she's seen whacking a dude with a piñata stick and then being pushed away by a little person!! She was actually on Kimmel talking about it as well. Take a look at one of the scenes: