Hilary Erhard Duff (born September 28, 1987) is an American actress, singer-songwriter, entrepreneur, model, producer and author. Born and raised in Houston, Texas, Duff appeared in local theater productions and television commercials before coming to prominence in the title role of the Disney Channel's teen comedy Lizzie McGuire. Established as a teen idol, Duff reprised that role in The Lizzie McGuire Movie (2003) and ventured into motion pictures with her early films Agent Cody Banks (2003), Cheaper by the Dozen (2003), A Cinderella Story (2004), Raise Your Voice (2004) and Cheaper by the Dozen 2 (2005) being among the biggest commercial successes of her career. She has also acted in a string of independent films with notable roles in War, Inc. (2008), According to Greta (2009) and Bloodworth (2011). Duff has also appeared in numerous television dramas and comedies, such as Ghost Whisperer, Gossip Girl, and Two and a Half Men, in addition to sharing production credits.