Charlie "C.A." Apple (born 1941 - Penn Hills, Pennsylvania) is a veteran R&B and oldies radio disc jockey from Pittsburgh, Pennsylvania. Apple began broadcasting at WPSL 1510 AM in Monroeville, Pennsylvania in 1966, and his career has seen stops at mostly small AM and FM stations in the Pittsburgh area. Along the way, he has amassed a cult following of fans who refer to themselves collectively as The Apple Corps. * Porky Chedwick * Mad Mike Metro * The Apple Corps * Pittsburgh City Paper article about Charlie Apple