Hilary Duff /

Hilary Erhard Duff (born September 28, 1987) is an American actress, singer-songwriter, entrepeneur, and book author. After working in local theater plays and television commercials in her childhood, Duff gained fame playing the title role in the Disney Channel television series Lizzie McGuire. She subsequently ventured into motion pictures and has appeared in many successful films, including The Lizzie McGuire Movie, Cheaper by the Dozen, A Cinderella Story and Cheaper by the Dozen 2. She most recently appeared in According to Greta and Stay Cool. Her upcoming films include Bloodworth, The Story of Bonnie and Clyde, and She Wants Me. 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. Her next two albums, Hilary Duff and Most Wanted, 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."