Demi Lovato + DJ Khaled + Kehlani

What do you get when you pair one of the most reliable modern pop divas with a ridiculously-connected music mogul who loves shouting his own name? You might think the answer is "a hit single," but it's actually a co-headlining arena tour that will find Demi Lovato and DJ Khaled sharing the stage. To be completely honest, we're looking forward to earworm anthems like "Sorry Not Sorry" and "Cool For the Summer" far more than any song that features Khaled shouting "We the best music," but that's just our two cents. Rising R&B singer Kehlani opens the show.