The movie stars Jordin Sparks , Derek Luke , Whitney Houston , Mike Epps , Cee Lo Inexperienced , Carmen Ejogo , Tika Sumpter , Tamela Mann and Omari Hardwick Sparkle features songs from the unique film written by soul musician Curtis Mayfield as well as new compositions by R&B artist R. Kelly 5 6 This movie is the debut of R&B / pop singer and American Idol winner Jordin Sparks as an actr