Britney Spears Is Adorably Goofy During a Las Vegas Christmas-Tree-Lighting Ceremony

Mrs. Claus better watch her back, because Britney Spears is coming for her Christmas crown. The "Pretty Girls" singer was given the honor of flipping the switch at a Christmas-tree-lighting ceremony at The LINQ Promenade in Las Vegas on Nov. 20, where she adorably goofed around with some elves in a black low-cut jumpsuit and gold jewelry. In true Britney fashion, she also served the crowd some pretty hilarious facial expressions, which only made us love her more than we ever thought possible. Keep reading to see more pictures of the superstar in holiday mode, and make sure you check out her sweet family photos while you're at it!