Donna Summer, the five-time Grammy-winning Queen of Disco, died of lung cancer May 17 at the age of 63. TMZ first reported the sad news, and the singer's family subsequently released a statement to AP confirming it. "We are at peace celebrating her extraordinary life and her continued legacy," the statement read. "Words truly can't express how much we appreciate your prayers and love for our family at this sensitive time." Summer got her start in the music business in the early '70s as a background singer for Three Dog Night, before skyrocketing to solo stardom thanks to a slew of iconic disco hits -- including "Love to Love You Baby," "She Works Hard for the Money," "Bad Girls" and "Last Dance." Summer passed away in Englewood, Fla., where she was living with her second husband, singer Bruce Sudano. She is also survived by her three daughters (two with Sudano, and one from her previous marriage to Helmuth Summer).