Abby Lee Miller is an American dance instructor, choreographer, and reality television personality, best known for her role on the reality series Dance Moms. Born on September 21, 1966, in Pittsburgh, Pennsylvania, she founded the Abby Lee Dance Company and gained fame for her strict teaching style and competitive dance teams. Miller has appeared in various spin-offs and specials related to Dance Moms, showcasing her expertise in dance and her interactions with young dancers and their families. In addition to her television career, she has faced legal challenges, including bankruptcy and a prison sentence for fraud.