See Bristol Palin, Pamela Anderson in Costume for DWTS: All-Stars

Bristol Palin and Mark Ballas Craig Sjodin/ABC

They're all dressed up and ready to hit the dance floor!

Bristol Palin, Pamela Anderson, Melissa Rycroft and nine other celebs are set to return to Dancing With the Stars for its first-ever All-Star season next month, and on Thursday, ABC provided a first glimpse of the stars in costume with their professional partners.

Hamming it up with pro partner Mark Ballas, single mom Palin, 21, shows off her sexy legs while giving the camera a goofy face in her costumed photo. Anderson, 45, also amps up the sex appeal, smoldering in a hot white halter dress.

pamela anderson dwts
Tristan Macmanus and Pamela Anderson Craig Sjodin/ABC

"[Critics] are going to be talking about us either way. I might as well be doing something enjoyable and fun and with a good group of people, and that's why I'm doing it," Palin said of her motivation to return to the ballroom in her quest to finally take home the mirrorball trophy.

"I won't be dancing in a monkey suit, but it's going to be awesome," she hints of her second time on the dance floor.

Joining Palin, Anderson and Rycroft for Dancing With the Stars: All-Stars will be Helio Castroneves, Joey Fatone, Shawn Johnson, Drew Lachey, Gilles Marini, Kelly Monaco, Apollo Ohno and Emmitt Smith. Competing for the final, 13th slot, to be determined by viewers are Sabrina Bryan, Kyle Massey and Carson Kressley.

Dancing With the Stars: All-Stars premieres Sept. 24 on ABC.

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