Don't ever count out athletes like Keyshawn Johnson in this competition.
Yep, that's Snooki during her gymnastic and cheerleading days.
Here's a sample of a few of the contestants who have had dance or movement training prior to joining the cast.
Start by watching the incredible Valerie Harper in this production number. It isn't available for embedding, but it's definitely worth watching.
Bill Nye, The Science Guy:
DWTS on AfterBuzz TV premieres on Tuesday, Sept. 17 with me, Anna Trebunskaya, Suri Serano and Jake DuPree at 8 p.m. PT. Watch here.