Because it's Miley Cyrus at the Teen Choice Awards.

You know them teens are all about the poledancing.

excuse me while i retch

I'm as horrified as that blonde girl at the back.

This is her younger sister, leftmost: www1.pictures.zimbio.com...

whywhywhywhywhywhy???!!!

FYI, poledancing is a legitimate sport and form of exercise. And I support it as long as the dancer isn't like, a minor.