Anna Moffo was an Italian-American soprano opera singer who had a successful career in the 1950s and 1960s. She was known for her beautiful voice and her ability to sing a wide range of roles. She was also a popular recording artist, appearing on numerous albums and singles. Her most famous role was as Violetta in Verdi's La Traviata. She was also a successful concert performer, appearing in many of the world's leading opera houses.