Bottoms up! Stars like Jennifer Lopez, Kim Kardashian, and Nicki Minaj know how to sizzle in front of the camera -- but it's all about what they have behind! Whether they cause awe or envy, look at some of our favorite celebrity butts of all time!
Kate Middleton's little sister was the breakout star of the royal couple's April 2011 nuptials, stealing the show with her now-iconic Alexander McQueen bridesmaid dress that accentuated her backside. "It was completely unexpected," she told Matt Lauer in her first TV interview in 2014. "The plan was not for it to be a significant dress. I suppose it's flattering."