Incredibly, it was Elvis who introduced June to Johnny’s music when he used to sing one of Johnny’s earliest hits, Cry Cry Cry, as he tuned his guitar

June later said: “Elvis was stooped down on one knee and grasping a guitar trying to tune it to somewhere near the correct pitch to make a correct chord ring. (He would sing) ‘Everybody knows where you go when the sun goes down, Ah-ummm, Ah-ummm’ and he’d strike the guitar again. Plink, plunk: ‘Ah-ummm …’

“‘What are you trying to do?’ I asked. ‘I’m trying to tune this guitar, honey, and I’m trying to sing like Johnny Cash.'”

“‘Who is Johnny Cash?’ I asked Elvis Presley. ‘What’s the a-um-a-um for?’

“‘That’s what drives the girls crazy,’ Elvis said.

“‘I don’t know this Johnny Cash,’ I said, and Elvis said: ‘Oh you’ll know Cash. The whole world will know Johnny Cash. He’s a friend of mine’.