According to Wikipedia,
Mary Violet Leontyne Price is an American soprano who was the first African American soprano to receive international acclaim. From 1961 she began a long association with the Metropolitan Opera, where she was the first African American to be a leading performer. She regularly appeared at the world's major opera houses, the Royal Opera House, San Francisco Opera, Lyric Opera of Chicago, and La Scala, the last at which she was also the first African American to sing a leading role. She was particularly renowned for her performances of the title role in Verdi's Aida.
Leontyne Price is affiliated with the following schools: