ATL was an R&B group from Atlanta, Georgia. The Vocalists were Trè'Kas "Tré" Simms, Marvin "Will" Williams, Lawrence "L-Rock" Gibbs and Rapper Cory "Danger" Griffin. They had enlisted R. Kelly to produce their debut album The ATL Project, released in July 2004. Two singles were released from the album: "Calling All Girls", and "Make It Up With Love". From Wikipedia →