Elvis and Carl Perkins exchanging autographs. On May 1, 1956 Elvis made a surprise visit to the Overton Park Shell in Memphis. Johnny Cash, Carl Perkins, Roy Orbison and Warren Smith were performing there but Elvis did not perform. Photo © Alfred Wertheimer | BECKY HARTLEY YANCEY: " My friend and I climbed over rails to get backstage and this picture was made, I am on Elvis' left side with my arm on his back." | author, "My Life With Elvis"