DANCING WITH THE STARS - SEASON 20 - BALLROOM COMPETITION DWTS will celebrate it's 10th anniversary and launch its 20th season on Monday .
DANCING WITH THE STARS - SEASON 21 - BALLROOM DANCING COMPETITION The full cast was revealed on Wednesday September 2, 2015 on GMA.
A new slew of stars is putting on dancing shoes. The 10th anniversary and Season 20 cast for ABC's popular reality competition was unveiled Tuesday on Good .
Past mirror ball champions Derek Hough, Mark Ballas and Karina Smirnoff are among the pros returning for season 21.
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