Remember Skylar Grey? She co-wrote Eminem's 'Love the Way You Lie' and was preparing to release her own album 'Invinsible' last year? Then she sorta just…disappeared. Well, she is back and fully reinvented, trading her black-haired, lipstick-smeared gothy glam for dirty girl, biker chick chic. At least that's how she looks on the cover of her new single 'C'Mon Let Me Ride,' which features her old pal Em.