Maria Callas, Commendatore OMRI (Greek: Μαρία Κάλλας; December 2, 1923 – September 16, 1977), was an American-born Greek soprano and one of the most renowned and influential opera singers of the 20th century. Critics praised her bel canto technique, wide-ranging voice and dramatic interpretations. Her repertoire ranged from classical opera seria to the bel canto operas of Doniz ... Show More