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Dancing with "DWTS" All-Stars Apolo Ohno & Karina Smirnoff

"Dancing With The Stars: All-Stars" partners Apolo Anton Ohno and Karina Smirnoff take a break from their grueling rehearsal schedule to take a load off on the Studio couch! Karina tells us the advantages of working with a partner who is already an athlete, and Apolo discusses how training for "DWTS" compares to training for a marathon. But enough chatter -- it's time to get down Gangnam Style! Hosted by Nikki Novak (@nikkinovak).