I'm probably a day late on this, because I haven't been able to spend as much time on the Internets as I'd like, and as the stereotype would suggest, but... um, holy shit!
There isn't even that much skin in the video for "California Gurls," it's just that
1) Some quality is just hard to conceal.
2) There's that scene where she's lying on a cloud with her ass in the air.
3) There's something about the idea of a woman's cans spraying whipped cream.
Lady Gaga wishes she could be this interesting.
Katy Perry’s Cans Star In “California Gurls” Video [The Smoking Section]