No Auto-Tune here! Unlike many child celebrities, Lovato can really sing. Their time at the Disney Channel made them a tween idol, but Demi Lovato also happens to be a mezzo-soprano with a three-octave range. While their life has at times become tabloid fodder, the singer's full-bodied vocal performances make for anthems that are anything but manufactured. In addition to having a world-class set of pipes, Lovato is fearless when it comes to baring their soul in music. There's real life as well as pop polish. Over the course of this playlist you can watch the kid from Barney & Friends and Camp Rock turn into a pop powerhouse with rebellious streak.