The album was made up of leftovers from Elvis' marathon June 1970 recording sessions in Nashville.

Wanting to squeeze out a third album from the sessions, RCA records had producer Felton Jarvis mix, overdub and compile the remaining songs.

The song's title track was a rare instance of Presley re-recording a past hit in the studio, his original version of "Love Letters" having been released as a single in 1966.

"Got My Mojo Working" is edited down from an impromptu jam session; Presley's version incorporates lyrics from "Hands Off", a 1955 song by Frankie Castro released on the Wing record label (RCA often mislabelled this song "Keep Your Hands Off of It" when the complete jam was issued on CD years later).

"Heart of Rome" was placed on the B-side of the non-album track "I'm Leavin'" released as a single in August 1971 it reached No.