VIDEO: Audrina Patridge Shakes Her Rump At 'DWTS' Rehearsal

Audrina Patridge has been going a mile a minute ever since "Dancing with the Stars" got on its way. Between extensive hours of practice and the show's back-to-back live recordings, she barely has any time to catch her beauty z's (whatevs, she looks hot even when she's working up a sweat). Yet when MTV's "10 on Top" stopped by rehearsals this week, the former "Hills" star showed no signs of exhaustion, only ambition. Check out this video clip of 'Drina and her partner Tony Dovolani pushing the limits before their second week of competition, plus tune in to "10 on Top" tomorrow at 11:30/10:30c to see more of her bootay-shaking!