Country music king Johnny Cash famously played to inmates at Folsom Prison in California in 1968.
But four years before, rocker Peter Morrison did the same thing in front of convicts at Leeds' Armley Jail.
Peter, then 16, and his band Tracy and the Zeros got the gig through bass player Clive Spinks' dad Ron.
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Ron, who managed the band, taught people with learning difficulties at High Royds psychiatric hospital, Menston, and at Armley Prison, today called HMP Leeds.
Playing Leeds' most infamous institution would have been an unnerving prospect for five Leeds teenagers.
But Peter, who grew up in Quarry Hill and East End Park, took it in his stride.
Peter, who played guitar and sang, said: "We did all sorts of gigs. We just played wherever came along."
Tracy and the Zeros played as part of a triple bill of entertainment for well-behaved prisoners. It also featured Welsh comedian Stan Stennett and the Black and White Minstrels, a then popular but racist act axed by the BBC in 1978.
Ron drove Peter's band into Armley through the jail's huge wooden gates. They were greeted by a group of trusted cons who carried their gear from the van to a hall with a small stage.
"It didn't seem to be high security," said Peter.
But Peter, 74, said the prison officers were wary some inmates might use the gig as an opportunity to escape.
He said: "I think they looked in the back of the van to see if they were any prisoners."
The band ascended a spiral staircase to the hall which soon filled with 120 prisoners and, according to Pete, an alarmingly small number of screws.
Peter said: "It was absolutely packed.
"One of the wardens said: 'The front row are OK; they're all convicted murderers.'"
Regardless of whether the officer was joking or trying to put the band at ease, Tracy and the Zeros played one of their best sets.
It included songs by The Kinks, The Rolling Stones and The Beatles plus a rendition of "I Just Don't Know What To Do With Myself", most famously performed by Dusty Springfield.
"As soon as we stopped playing they were marched out and it was empty very quickly," said Peter.
There was however one incident.
One of the prisoners who had been lugging the band's gear accidentally dropped other guitarist Steve's amplifier down the stairs and broke it.
But despite a smashed amp – HM Prison Service later paid for a new one – Peter said he would have happily returned to play another show.
Peter, who today lives in Surrey, said: "It was a fascinating experience...
"It was amazing. We had a captive audience. They were brilliant."
Peter added: "There was no swearing. They were very well behaved."
He joked: "It was all very innocent."
Peter went on to join the psychedelic band New York Public Library (NYPL), previously called The Cherokees.
NYPL, who released singles on MCA, toured Europe and the US supporting The Tremeloes, Marmalade and The Idle Race.
Peter continued as a professional musician, including in the folk group Bower, Morrison and Woollard (BMW), until 1985.
An apprentice carpenter before his music career took off, Peter then trained as a woodwork teacher working in schools and colleges until 2014 when he retired.
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