'Dancing With the Stars' Season 21: Returning Pro Dancers Revealed

Derek Hough and Karina Smirnoff are among the returning pros for “DWTS."

Smirnoff had been absent from the prior season’s show, which was won by Val Chmerkovskiy and celebrity partner Rumer Willis.

The new season premieres at 8 ET on Monday, Sept. 14, on ABC.

In addition to Hough, Ballas and Smirnoff, other pros who will appear on “Dancing”’s season 21 are Chmerkovskiy – the defending champion, Artem Chigvintsev, Allison Holker, Sharna Burgess, Peta Murgatroyd and Witney Carson.

The new season’s celebrity cast will be announced on Wednesday, Sept. 2, on "GMA."