Liza Minnelli is an American actress and singer, widely recognized for her powerful mezzo-soprano voice and dynamic stage presence. She is known for her interpretations of pop and jazz standards, as well as theatrical and film performances. Minnelli's most significant work includes the film "Cabaret," for which she won an Academy Award, and her album "Liza with a Z," which won an Emmy. Her music, often intertwined with her acting, has had a significant influence on musical theater and cabaret style performances.