NASHVILLE, TN – JUNE 7: Bob Dylan and Johnny Cash perform together with acoustic guitars on 'The Johnny Cash Show' on June 7, 1969 in Nashville, Tennessee. (Photo by Michael Ochs Archives/Getty Images)
George Harrison (1943 – 2001, left) and Eric Clapton at Limehouse Studios in London during recording of the TV programme 'Blue Suede Shoes', spotlighting veteran rockabilly songwriter and guitarist Carl Perkins. In the background are drummers Slim Jim Phantom and Ringo Starr. (Photo by Dave Hogan/Hulton Archive/Getty Images)
NEW YORK – CIRCA 1965: R&B vocal group 'The Four Tops' pose for a portrait in circa 1965 in New York City, New York. (L-R) Abdul "Duke" Fakir, Renaldo "Obie" Benson, Levi Stubbs, Lawrence Payton. (Photo by Michael Ochs Archives/Getty Images)
