Ah, the holidays are over -- but those sneaky Christmas cookie and peanut brittle pounds remain. The average American puts on roughly six pounds in December with every intention of losing them in January.

"The Biggest Loser's" Jillian Michaels joined "Extra" at The Grove on Monday to help fans work off those holiday pounds. Check it out!

Check out the healthy celebs who shed big pounds in 2010 and are looking h-o-t!

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