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Maksim Chmerkovskiy has been a competing pro on Dancing With The Stars for 17 seasons. He first appeared on the show in the fifth season in 2007 and has been on the show ever since. He has won the competition twice, in the fifth season with partner Meryl Davis and in the 10th season with partner Peta Murgatroyd. He has also been a choreographer on the show for several seasons.