Hilary Duff has added doll clothing designer to her impressive resume after being asked to create a new line for Barbies in Japan. The pop star/actress and sister HAYLIE, both huge Barbie fans, have been asked by toymaker Mattel to design a mini-wardrobe for their Japanese likenesses. Hilary says, "Barbies have really cool couture clothes in Japan... They made Barbies of Haylie and I and we got to design the clothes and it was really cool. "(Asian designer) ANNA SUI has a Barbie doll and all these designer clothes so we felt special."