From Crescent City to Folsom Prison

"Crescent City Blues" (Gordon Jenkins)- the surprising source (1953) of Johnny Cash's "Folsom Prison Blues".

Bob Dylan used the melody of Johnny Cash's "Understand your man" for "Don't think twice, it's alright", in his turn.

And did you know that the source of the Rolling Stones' "The Last Time" was the gospel song "This may be the last time"?

More examples?