After walking on the moon, hitting the dance floor should be a breeze for Aldrin, right? Maybe — if he weren't 80 years old.
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Pamela Anderson and Damian Whitewood (tie)
The Baywatch babe and the newbie pro bring up the rear in the rankings alongside Aldrin and Costa. But surely Anderson's used to choreography after running on the beach all those years.
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Niecy Nash and Louis van Amstel
The comedienne and Clean House host only garnered 2 percent of the vote. Will she have to keep her sassy 'tude in check to win more people over?
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Shannen Doherty and Mark Ballas (tie)
Where's the faith, 90210 fans? Ian Ziering and Jennie Garth both finished fourth in their respective seasons, but voters don't think Doherty can match their placements, let alone win.
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Kate Gosselin and Tony Dovolani (tie)
The reality mom has never danced before — she didn't even dance at her wedding (omen?) — but voters have some faith in her untapped abilities. Now the question is: Will she have enough supporters to vote for her?
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Jake Pavelka and Chelsie Hightower (tie)
The Bachelor alum didn't do much dancing on the show — unless you count his and Vienna's cheese-tastic dancing to "On the Wings of Love" — but maybe Tenley, a trained dancer, taught him some moves on the floor when the cameras weren't rolling.
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Aiden Turner and Edyta Sliwinska (tie)
Never count out a hunky foreigner — especially one who starred on a soap (All My Children).
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Erin Andrews and Maksim Chmerkovskiy (tie)
Andrews was on a dance team in college and looks to have the chops (and legs) to go a long way.
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Chad Ochocinco and Cheryl Burke (tie)
The NFL star with the outsized personality will have to rein in his freestyling tendencies, but that shouldn't be a problem — gridiron giants have a great track record on Dancing.
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Nicole Scherzinger and Derek Hough
Should we pencil in the former Pussycat Doll for the final? With her performing background, Scherzinger will be tough competition.
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Evan Lysacek and Anna Trebunskaya
The figure skater nabbed 40 percent of the vote to top the pre-season ranking. Can he follow in Kristi Yamaguchi's skates and add the Mirrorball trophy to Olympic gold?