The first album by Presley after his military discharge from the army, the first day of its sessions were attended by Presley's manager, Colonel Tom Parker, his assistant Tom Diskin, and representatives from RCA in a show of interest regarding whether or not Elvis still "had it" after two years in uniform. His long-serving guitarist Scotty Moore, pianist Floyd Cramer, and drummer D. J. Fontana had returned, along with his back-up vocal quartet The Jordanaires, but the other musicians had only played on one previous session with Presley. One new face at the sessions whom Presley had befriended while in the service, Charlie Hodge, would become a member of the "Memphis Mafia" and a mainstay in his return to live performance at the end of the decade. Pressure aside, the sessions were successful, the album a highlight of the entire decade and a declared favorite by Presley regarding his own work. He moved beyond his standard rock and roll sound of the 1950s, combining doo-wop, gospel, blues, and even jazzy tones from his version of "Fever" following so close to that of Peggy Lee from 1958. The results yielded a new sound for Presley, with a varied song selection, moving him further toward the pop music he would undertake as the decade progressed. Prior to this, only his second album fully derived from a specific set of sessions undertaken expressly to make a particular album.