'Dancing With The Stars: All-Stars' Most Challenging Routines, According To The Cast (VIDEO)

Are the "Dancing With the Stars: All-Stars" ready to rumba?

I caught up with returning stars Pamela Anderson, Drew Lachey, Kelly Monaco, Helio Castroneves, Bristol Palin and Melissa Rycroft before Season 15 kicks off (two-night premiere begins Mon., Sept. 24, 8 p.m. ET on ABC), and they all shared which one dance terrifies them the most.

From the sexy, hip-shaking rumba to the more graceful, traditional dances, watch the video interview above to see which dances are keeping them up at night. Also, find out if we'll be seeing Palin in a gorilla suit again, and who considers this shot at "DWTS" redemption a "romantic, sensual adventure."

Tell us: Are you excited for "Dancing With the Stars: All-Stars"? Who do you think has the best shot at winning?

"Dancing With the Stars: All-Stars" two-night premieres kicks off Mon., Sept. 24 at 8 p.m. ET on ABC.