"Hey Joe" - The Jimi Hendrix Experience (1966)
The Jimi Hendrix Experience version is the best known but not the first. It is claimed to be written by Billy Roberts in the mid-fifties, but others have claimed to have wrote it. It was first commercially recorded by a garage band called The Leaves in 1965. It has been covered by at least a hundred other artists.
"If not us, Who? If not now, When?" --- John F. Kennedy