I kept talking to my producers at Columbia about recording one of those [prison] shows. So we went into Folsom on February 11, 1968, and recorded a show live.
Johnny CashI had a song called "Folsom Prison Blues" that was a hit just before "I Walk The Line." And the people in Texas heard about it at the state prison and got to writing me letters asking me to come down there. So I responded and then the warden called me and asked if I would come down and do a show for the prisoners in Texas.
Johnny Cash