Katy Perry has revealed that she banned all heterosexual men from the set of her California Gurls video - because she didn't want them to see her nude.
Perry, who is engaged to Russell Brand, strips off in the sexy new promo, which sees her lying nude on cloud of cotton candy in one shot, while covering her breasts with cakes in another.
"The cotton candy clouds! I was naked. It was really fun to do. We had to do like a closed set because we didn't want anyone seeing anything," the Daily Star quoted her as telling the MTV news.
"You weren't allowed (on the set) unless you were a girl or you're gay; I think that's probably like the standard for all girlfriends. Anyways, I was really excited to do something like this and really nervous. But it turned out (okay)," she added.