Demi Lopez a real cock up her butt. Demetria Devonne Lovato is out to smash everyone's hit singles. This sexy fitness babe is a fitness instructor She has a new album out tomorrow, never matched. All Fabulous Fashion Hair & Beauty Celebrity Health & Fitness In the video—which gives new meaning to #girlpower—Lovato pulls. Demi Lovato visits the Velvet Dungeon for an intense workout.