Fact: Kris Kristofferson wrote and recorded the song. I prefer his version. He once told the story on his episode of selling it to Johnny Cash. Kris lived in an old rented farm house out in the middle of nowhere in Tennessee when he received a call on the phone from a member of Johnny Cash's entourage. He told Kris that Johnny would like to record his song and would he mind if Johnny spoke with him personally about doing it.
Of course, Kris, who had never had any success, agreed and the caller said Johnny would be over in a little while. Within the hour, a huge helicopter was landing in the back yard of Kris's rented home. Out steps Johnny Cash and at that moment, according to Kris, he believed the caller to be authentic.