"My 2015 has been incredible," says Demi Lovato, 23, whose fifth album Confident arrived in November. "People look at me as an artist that has been around for a while, rather than another former Disney star." Sure enough, Lovato's most recent record debuted at No. 2 on the Billboard 200, bolstered by the coyly bicurious lead single "Cool for the Summer" and the triumphant title track. Even more spectacular, though, was watching Confident's declaration of self-love at work in her own life.