Haylie Duff is an American singer, actress, and songwriter born on February 19, 1985, in Houston, Texas. She is best known for her pop music career and is the younger sister of actress and singer Hilary Duff. Haylie's music primarily falls within the pop genre, and she gained prominence with her 2004 debut album, "The Last Christmas," which featured a mix of holiday-themed songs. One of her notable works includes the single "So Yesterday," which she performed for the soundtrack of the film "The Lizzie McGuire Movie." Additionally, she contributed to soundtracks for various films and television shows, showcasing her versatility as an artist. While her music career did not achieve the same level of commercial success as her sister's, Haylie has made a mark in pop culture through her roles in film and television, including her work on the TV series "7th Heaven" and "Napoleon Dynamite." Haylie Duff's impact on music is characterized by her contributions to soundtracks and collaborations within the entertainment industry, as well as her role in shaping the pop landscape in the early 2000s, particularly among teenage audiences.