Celebs really know how to get in the holiday spirit! Take Paris Hilton, for example. She showed up to a mall in a sexy Santa getup to promote her new perfume. Jenny McCarthy also played Claus to plug her ABC Family movie Santa Baby 2.
But costumes aren’t required for a star-studded holiday celebration. Check out our gallery of celebs including The Jonas Brothers, Jimmy Fallon and Kim Kardashian participating in seasonal events.