Her mother, Susan, is a film and music producer, and her father, Bob, owns a chain of Texas convenience stores.
Natural born performers, Haylie Duff and her younger sister both began taking ballet lessons as toddlers.
"I always wanted to be like my older sister Haylie. After doing several small guest spots on television shows, Duff made her film debut in the .
She is best known on her role as Sandy Jameson in the television series 7th Heaven, Amy Sanders on Lizzie Mc Guire, Summer Wheatley in Napoleon Dynamite, and Annie Nelson in the made-for-television films Love Takes Wing along with its sequel Love Finds a Home (2009).
Duff's mother, Susan Colleen Duff (née Cobb) is a film producer who was a co-executive producer of A Cinderella Story (2004), a producer of The Perfect Man (2005) and Material Girls (2006), and the manager of Hilary; she was previously a homemaker.
Building on the success of in January 2006 and landed on that magazine's 2007 list of the world's 100 most beautiful women.
Despite her slim figure, Duff says that she loves to eat and cook, and she writes her own food blog in her spare time.
"This week has seriously just become the best week of my life!