Shirley Verrett in Milan in 1975
Shirley Verrett (May 31, 1931 – November 5, 2010) was an American operatic mezzo-soprano who successfully transitioned into soprano roles, i.e. soprano sfogato. Verrett enjoyed great fame from the late 1960s through the 1990s, particularly well known for singing the works of Verdi and Donizetti.