Soul singer Cissy Houston, who was also known as the mother of pop icon Whitney Houston, died Monday morning. She was 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.

Cissy Houston, mother of singer Whitney and a backup singer with Elvis Presley, Jimi Hendrix and others, has died. She was 91. According to the Associated Press, Houston died Monday in her New Jersey home under hospice care for Alzheimer’s disease.