I Saw Mommy Dressed as Santa Claus: Celebs in Their Holiday BestThe holiday season may conjure up visions of sugarplums for some, but for others, nothing says "celebration" like the sight of Santa himself.

From the naughty (ahem, Snooki) to the nice, stars give their all when it comes to getting in the spirit of the season. While many take their cues from a sexier Saint Nick than we're used to, others, like Katy Perry and 'Whip My Hair' diva Willow Smith, take a more demure approach to holiday trimmings. So who's been good and who's getting a lump of coal this year?

Check out our festive favorites in our celebrity holiday gallery!