Leona Lewis new look in a winged dress at Harper's Bazaar party

Leona Lewis continued her walk on the edgier side of fashion last night in a winged-style black Stella McCartney dress.The former X Factor winner squeezed her newly svelte figure into the ensemble at a party hosted by the Spanish edition of Harper's Bazaar magazine.But the 24-year-old singer's outfit, complete with wings attached to her back, had something of a Bat-woman ring about it.