Demi Lovato's tour pulled in some serious money! Probably because It had a stellar line up, including our Bay Girl Kehlani and DJ Khaled. Demi Lovato's Tell Me You Love Me tour put $20 million in her pocket. According to Billboard, the 20-leg tour stop put Lovato in front of over 260,000 fans. The stateside part of the tour is over until later this summer. In fact, Demi and Kehlani got people talking after Demi pulled Kehlani onstage to perform her song "Lonely" and then sent out a tongue in cheek tweet. Lovato will hit Europe starting May 24th. Who's on your must-see concert list this year?