Grammy-winning Cissy Houston, mother of Whitney, dies at 91

Cissy Houston, the Grammy-winning mother of the late Whitney Houston, has died, her daughter-in-law said in a statement Monday. She was 91 years old.

"It saddens my heart to announce the passing of my beloved Queen Cissy Houston today! Please keep the Houston family in your prayers," Pat Houston wrote on Instagram.

Born Emily Drinkard, Cissy Houston sang soul and gospel, boasting a successful backup career for the likes of Elvis Presley, Aretha Franklin and Dionne Warwick, including...