Here's who they'll be dancing with!
ABC competition show "Dancing With the Stars" announced its celeb-pro matchups Monday for its upcoming all-star season, which features contestants who've already given it a go on the dance floor.
Among the notable pairings are Pamela Anderson and Tristan MacManus; Kirstie Alley and former partner Maksim Chmerkovskiy, Bristol Palin and former partner Mark Ballas, Gilles Marini and Peta Murgatroyd, Season 2 winner Drew Lachey and Anna Trebunskaya, former winner Shawn Johnson and Derek Hough, and Emmitt Smith and Cheryl Burke.
Also dancing: Melissa Rycroft and Tony Dovolani, Apolo Anton Ohno and Karina Smirnoff, Helio Castroneves and Chelsie Hightower, Joey Fatone and Kym Johnson, and Kelly Monaco and Val Chmerkovskiy.
A 13th celeb dancer is being voted on by the public through Aug. 24. The season premieres Sept. 24 at 8 p.m.