Hilary Erhard Duff is an American actress, singer, songwriter, designer, producer, and author. Duff began her acting career at a young age and quickly became labeled a teen idol as the title character of the Disney Channel series Lizzie McGuire and in the theatrical film based on the series, The Lizzie McGuire Movie.
Since then, Duff was involved in many projects within Disney, such as the film Cadet Kelly (2002), Agent Cody Banks (2003), Cheaper by the Dozen (2003), A Cinderella Story (2004), and Cheaper by the Dozen 2 (2005).
She released her Christmas themed Santa Claus Lane in 2002, and her second album Metamorphosis in 2003. The album sold over three million copies in the United States alone.