One of America's most prominent opera singers, Beverly Sills, has died at her home in New York.
Sills remained in the public eye after she retired from singing
She was 78, and had been suffering from lung cancer.
Ms Sills, a coloratura soprano, began performing in 1955 with the New York City Opera, where she sang many of her best-known roles.
She made her debut at New York's renowned Metropolitan Opera in 1975. She also performed at La Scala in Milan and at Covent Garden in London.
Sills retired from singing in 1980, at the age of 51.
But she remained in the public eye, both as a high-profile arts administrator and TV host.
Although she died from lung cancer, she never smoked.