"We went down [Folsom Prison] and there's a rodeo at all these shows that the prisoners have there. And in between the rodeo things, they asked me to set up and do two or three songs. So that was what I did. I did "Folsom Prison Blues," which they thought was their song - you know? - and "I Walk The Line," "Hey Porter," "Cry, Cry, Cry." And then the word got around on the grapevine that Johnny Cash is all right and that you ought to see him."