Stars Deck the Halls

See how Jen Garner & Martha Stewart, Mariah Carey, Pink, Katy Perry & Russell Brand and more stars are celebrating the holidays!

10 of 19

PARIS HILTON

The heiress spent some time this past season volunteering at Los Angeles's Union Rescue Mission. It was a return trip: Hilton also stopped by the homeless shelter in October with her sister Nicky to help serve food.