The cheekiest celebrities in the known universe have it pretty easy. Whether it's Britney Spears, Jessica Biel or Kim Kardashian -- with an ample or otherwise notable backside, your job is nearly done (or evenly split, at the very least). Who cares if you can't sing, act, or string more than a few words together? ... well, we do, but there is no denying that having a rump that stands out in a crowd is one of Hollywood's most coveted assets. Check out the gallery below of some of the famous derrieres in these celebrity-obsessed times.,feedConfig,localizationConfig,entry&id=902763&pid=902762&uts=1277502421