The picture ran the next day in the Memphis Press-Scimitar with the caption "The Million Dollar Quartet." The Perkins session morphed into an impromptu jam after the photographer left, and Phillips fortunately kept the tape running as the four musicians ran through some 40 songs ranging from gospel spirituals and country standards to covers of Bill Monroe and Chuck Berry songs (or in other words, most of the ingredients that went into the creation of rock roll). There is some debate as to whether Cash was actually there for the jam (he claims he was in his autobiography), and most of the singing is Presley's, but the joyous spontaneity and the fly-on-the-wall feel of the occasion makes these tapes fascinating listening.
The first bootlegs of the session appeared in 1980, with Charly Records officially releasing a 17-song set in 1981. More tapes were subsequently found (in all, three reels have been located to date) and Charly issued a double-LP set with 41 tracks from the session in 1987. The caption from the publicity photo, the Million Dollar Quartet, has stood the test of time and is now forever linked to these four musicians and to one of the most famous jam sessions in the history of pop music. ~ Steve Leggett, Rovi