Natalie Cole once worked as a pimp's come-on girl to support her heroine addiction. That's one of many sordid tales the 50-year-old singer writes about in Angel on My Shoulder, her upcoming memoir. "She stood on the street and waved at guys in cars," Digby Diehl, Cole's collaborator on Angel, tells the New York Post. "She'd bring a guy to the curb, where other women would do the business. She advertised her body so that they could sell theirs... it was the lowest point in her life." The book hits store shelves in November. NBC is planning a movie version, in which Cole would star.