Pixie Lott is unrecognisable as she dons a brunette bobbed wig

People catching a glimpse of Pixie Lott's new video could be forgiven for wondering just who was singing.The blonde teenager looks unrecognisable as she dons a brunette bobbed wig for her new promo Gravity.In a feathered mini-dress, thigh-high boots and heavy make-up, Lott looks a world away from her usual style of cute mini-dresses and hippie hairbands.Scroll down to watch the video Whose