Hilary Duff was only in the business for a few years when she landed the life-changing role in Disney's Lizzie McGuire. The program turned Hilary into a household name among adolescents, and it wasn't long before the up-and-coming actress began appearing in more high-profile projects. She starred opposite Frankie Muniz in Agent Cody Banks (2003), played one of Steve Martin's daughters in Cheaper by the Dozen (2003) and its sequel Cheaper by the Dozen 2 (2005), and she took on a leading role in The Perfect Man (2005) with Heather Locklear. Hilary is also a stand-out singer: She has three multi-platinum albums and a gold Christmas album. Her most recent album, Most Wanted, spent two weeks at the top of the U.S. charts.