Jennifer Lopez has been crowned 'most famous celebrity rear end' according to WENN.com.
The actress and singer (and rumoured American Idol judge) came top of celebrity butts in a survey by the site.
Apparently 37% of voters picked Lopez for having the best bum.
Lopez has said: "I do special squats and work with loads of weights in the gym to achieve my butt. And in a way I’m kind of flattered when people compliment me for having a big ass."
Find out else came behind her... and which celebrities tied for third place!!!