She just wrapped filming The Hunger Games: Catching Fire, reprising her role as movie heroine Katniss Everdeen. So it's possible Jennifer Lawrence's bizarre hairstyle on Sunday was down to her embodying her onscreen persona as The Girl On Fire.
She likes to think of herself as once of the edgiest popstars around. So when even though Rihanna has swapped her cropped 'do for longer locks, courtesy of hair extensions, the singer has done her best to ensure she still maintained her edge.