German artist, musician and record producer Klaus Voormann, former bassist for Manfred Mann, has played on a number of iconic recordings, from Carly Simon's "You're So Vain" to Lou Reed's "Transformer" album, and with many projects of the former members of the Beatles, whom Voorman has known since their Hamburg days. The one-time London roommate of George Harrison and Ringo Starr won a Grammy for designing the cover of their 1966 album "Revolver," which has just been reissued in a deluxe remastered box set. In 2009, Voormann released his debut solo album "A Sideman's Journey," which featured the two surviving Beatles, McCartney and Starr, performing as "Voormann and Friends." His latest work involves the composition of the graphic novel "Birth of an Icon, which details his efforts behind the creation of the "Revolver" cover art. In this bonus episode of "Everything Fab Four," Voorman — on the phone all the way from Germany — and host Ken Womack discuss the evolution of the Beatles' songwriting, everyone's favorite Mal Evans, and of course, how he created the "Revolver" cover.