The starlet, 20, posted a picture of herself with her young cousin and members of the cast of Grinchmas, a holiday show playing at Universal Studios Hollywood.
"Perfect ending to the holidays taking my cousin Sophie to see #grinchmas @unistudios #family," she wrote on Twitter to accompany the photo Friday.
And Universal, Tweeted right back, saying, "Thanks for coming Selena! It was great to have you & Sophie. #Grinchmas."
Before the holiday, Gomez spent some time enjoying the snow. She was spotted in Canyons Resort in Park City, Utah, with her on-again boyfriend Justin Bieber. They were joined by Taylor Swift and Harry Styles. The two couples kept warm in separate rental houses at The Colony in Park City.