Sister of R&B singer Dionne Warwick who won recognition for her collaborations and for her solo work, including 'Suspicious Minds.'
She began singing backup to her older sister in the Gospelaires, going from gospel to country in the 1960s.
Her chart-topping soul songs spanned decades, from the 1963 "You're No Good," later a major hit by Linda Ronstadt, to the early-1970s hit "She Didn't Know (She Kept on Talking)."
She was the younger sister of Dionne Warwick and the cousin of Whitney Houston.
She sang backup to Aretha Franklin, one of many prominent singers who invited her to work with them.