Taylor and Selena's Sweetest BFF Moments Through the Years

Taylor invited Selena to join her on stage during her LA show in August 2015, and they shared the sweetest Instagrams after their big night. Selena wrote, "After nearly 8 years of friendship, I just can't wait to tell our kids we ACTUALLY got to perform in front of thousands of insanely beautiful people together," and Taylor said, "Sisterhood."