Cissy Houston, Whitney Houston's mother and Grammy winner, dies at age 91

Cissy Houston, the mother of the late Whitney Houston and a two-time Grammy winner who performed alongside superstar musicians like Elvis Presley and Aretha Franklin, has died, CBS News confirmed. She was 91.

Houston died Monday morning in her New Jersey home while under hospice care for Alzheimer's disease, her daughter-in-law Pat Houston said in a statement. The acclaimed gospel singer was surrounded by her family.

"Our hearts are filled with pain and sadness," Pat Houston said in the statement, calling her mother-in-law "the matriarch of our family." She said Cissy Houston's contributions to popular music and culture are "unparalleled."