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)
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)