Selena Gomez Joins BFF Taylor Swift on Stage to Sing 'Good For You' - Watch Now!

Taylor Swift and her BFF Selena Gomez take the stage together during the 1989 World Tour on Wednesday (August 26) at the Staples Center in Los Angeles.

The 25-year-old entertainer and Selena, 23, sang “Good For You” together. Selena has never performed the song live!

PHOTOS: Check out the latest pics of Selena Gomez

Taylor introduced her friend as a “multi-talented performer, who is good at everything she does…Here’s the thing with this song: She’s never performed it live before on stage.”

Watch the amazing performance below…