Alessandra Ambrosio models new Chanel outfit while sharing Christmas festivities on social media

Pamela Anderson drags out a tree and tells Santa Claus that Christmas is over in social media video

Paris Hilton and Reese Witherspoon lead stars in celebratory Christmas Day social media posts

Alessandra Ambrosio is a busty bombshell in a sumptuous fur coat over SWIMSUIT in snowy Rockies