Hilary Erhard Duff (born September 28, 1987) is an American actress, singer-songwriter, entrepreneur, and author. After working in local theater plays and television commercials in her childhood, she achieved fame playing the title role in the Disney Channel television series Lizzie McGuire. She also reprised her role in the The Lizzie McGuire Movie. With the success of the Lizzie McGuire franchise, she established herself as a teen idol. Duff subsequently ventured into motion pictures and has appeared in many successful films, including Agent Cody Banks, Cheaper by the Dozen, A Cinderella Story and Cheaper by the Dozen 2.
Duff has expanded her repertoire to include pop music and has released three RIAA-certified platinum albums. Metamorphosis, her debut studio album, was certified triple platinum. She followed it up with two more albums, Hilary Duff and Most Wanted, which were also certified platinum. In 2007, Duff released her third studio album, Dignity, which was certified gold and spawned her highest charting US single to date, "With Love". Best of Hilary Duff, a compilation of her greatest hits, was released in the last quarter of 2008. Duff has sold over thirteen million records worldwide.
She has also made a foray into the fashion industry by launching her own clothing lines, Stuff by Hilary Duff and Femme for DKNY Jeans. She has also signed with IMG Models and released two exclusive perfume collections with Elizabeth Arden. Her other business ventures include writing a young adult novel, Elixir, and working as an executive producer for According to Greta and as a producer for Material Girls and Beauty & the Briefcase. <Source>
