Duff has expanded her repertoire into pop music, with three RIAA certified-platinum albums and over thirteen million albums sold worldwide. Her first studio album, Metamorphosis (2003), was certified triple platinum and she followed it up with two more platinum albums, Hilary Duff (2004) and Most Wanted (2005). Duff's latest studio album, Dignity, was released in April 2007 and was certified Gold in August 2007.
She has also launched a clothing line, Stuff by Hilary Duff, and an exclusive perfume with Elizabeth Arden. Duff and her mother were listed as producers for the movie Material Girls, As of December 2007, her upcoming films include the action thriller War, Inc., animated comedy Foodfight! and independent films Greta and Safety Glass.
Haylie Duff is an American actress and singer songwriter. She is best known for being the sister of Hilary Duff and her supporting role on 7th Heaven as well as playing supporting roles in the films Material Girls and Napoleon Dynamite. She will also be releasing her debut album Walk the Walk in mid-2008.
