Katy Perry was playing dress-up at the 2010 Teen Choice Awards - see all her hilarious high-school outfits, and vote for your favourite here!
As soon as we heard that Katy Perry was to host this year's Teen Choice Awards, we knew we'd be in for a visual treat...
And the songstress didn't disappoint, hitting the stage in an array of hilarious teen-inspired costumes.
From bespectacled geek and Twilight-inspired goth, to chirpy cheerleader and popular prom queen - Katy left no high school cliché untouched...
See all her crazy costume changes here, and then VOTE for your favourite below!
SEE ALL KATY PERRY'S TEEN CHOICE COSTUME CHANGES HERE!
SEE ALL THE STARS AT THE 2010 TEEN CHOICE AWARDS
