Hilary Duff (born September 28, 1987) is an American actress and recording artist. After working in local theater plays and television commercials in her childhood, Duff gained fame for playing the title role in the television series Lizzie McGuire. Hilary Duff subsequently ventured into feature films, with her most commercially successful movies being Cheaper by the Dozen (2003), The Lizzie McGuire Movie (2003), and A Cinderella Story (2004). Duff expanded her repertoire into pop music with the release of three RIAA-certified platinum albums and over thirteen million records sold worldwide as of February 2007.

In November 2008, she released a compilation of her greatest hits, Best of Hilary Duff, whose single "Reach Out" became her third #1 on the Billboard Hot Dance Club Play. Duff has also launched clothing lines which include Stuff by Hilary Duff and Femme for DKNY Jeans and two exclusive perfume collections with Elizabeth Arden. Hilary Duff and her mother were listed as producers for the movie Material Girls. Duff is credited as executive producer for her independent film According to Greta and is also signed on as a model to IMG Models New York. On February 19, 2010, Duff got engaged to Mike Comrie after a courtship of over two years.