Katy Perry In Teen Choice: Vempire: She handled the hosting duties, along with the guys from Glee, and Katy Perry had an extensive wardrobe at last night’s 2010 Teen Choice Awards. The “Hot N Cold” songstress kept the audience at the Gibson Amphitheatre guessing with her many fun and flirty getups, including a throwback to her high school years as Prom Queen and Cheerleader.

Katy also tackled a few other personas like the hippie chick look, nerdy girl (complete with head gear braces), black lace and leather 80s rocker, and a regular sexy striped strapless dress. And in the midst of all of her costume changes, Katy also managed to snag the award for Choice Music: Single for “California Gurls.”