Selena Gomez and Taylor Swift Are the Ultimate BFFs During Onstage Duet

Taylor Swift and Selena Gomez know how to make a crowd go wild. The pair hit the stage during Taylor's last 1989 world tour show at the Staples Center in LA on Wednesday night and, needless to say, it was pretty amazing. The BFFs, who looked gorgeous in nearly matching bodysuits and thigh-high boots, sang Selena's hit song "Good For You" for the sold-out stadium. The performance marks the first time Selena has belted out the song in front of a live audience. After the show, the two took to Insta...