Leslie Ann Carter was born to Robert Gene Carter (1952 - 2017) and Jane Spaulding. She had four siblings, including Backstreet Boys' Nick Carter and Aaron Carter (1987 -2022), and Leslie Barbara, Aaron's twin Angel, as well as Bobbie Jean (1982 - 2023).
Leslie also had a half sister Ginger Lee (1972 - 2023) and a half brother, Kaden.