Related Information for Dee Dee Warwick Dee Dee Warwick (September 25, 1945 – October 18, 2008) was an African-American soul singer. Born in Newark, New Jersey as Delia Mae Warrick, she was the sister of Dionne Warwick, niece of Cissy Houston, and cousin of Whitney Houston.Dee Dee Warwick sang with her sister Dionne Warwick and their aunt Cissy Houston in the New Hope Baptist Church Choir in Newark, NJ: eventually the three women formed the gospel trio the Gospelaires who often performed with the Drinkard Singers, Hous.. read more