Skylar Grey battles her former self in the tumultuous video for “Dance Without You,” the buzz single from her forthcoming debut Invinsible. The singer-songwriter, who’s penned hits for Eminem, Dr. Dre, and Diddy-Dirty Money, emerges from the back of Holly Brook, the name she previously recorded under. The auburn-haired Holly struggles to escape from the clutches of the darker Skylar in a doctor’s room. But there’s only room for one star.