To promote Katy's Part of Me behind-the-scenes movie, one of her costumes from the California Dream concert tour was on display at ArcLight Hollywood cinema
Celebuzz wants to hook u — and 25 of your nearest and dearest — up! All u need to do is toon your love for Katy Perry and u can win the ultimate grand prize — a special hometown screening of her new movie, Katy Perry: Part Of Me!