Long before Justin Bieber entered the mix, Demi Lovato and Selena Gomez met on the set of Barney & Friends as kid actors in the late 90s and became fast pals. In an interview with Seventeen magazine in January 2014, Gomez revealed despite a falling out while Lovato was in rehab in 2010, they remain close friends. "I've known her since we were 7, and we did fall apart for a while. She was going through things and I was so young and it was confusing. I processed it saying, 'OK, I don't understand what she's going through so I'm just going to do this.' I don't think it was fair, and I'm so happy that I have her back in my life now."