John Rich is officially on the cast of NBC's Celebrity Apprentice. The season premiere will be March 6. Other contenders include actor Gary Busey, retired baseball player Jose Canseco, former teen idol David Cassidy, model Hope Dworaczyk, Survivor winner Richard Hatch, singer La Toya Jackson, TV personality Star Jones, Real Housewives of Atlanta's NeNe Leakes, rapper Lil Jon, actress Marlee Matlin, Sugar Ray singer Mark McGrath, rock star Meat Loaf, soap actress Lisa Rinna, supermodel Niki Taylor and crooner Dionne Warwick. The celebrities will compete against each other to raise money for their favorite charity. Rich began shooting episodes of the show late last year, but his involvement was officially announced Friday (Jan. 14).