Surprise covers

I haven't posted music in a while, and this collection's pretty cool. Every so often I discover that a song that I thought was original is actually a cover of some little known earlier effort by a poor schmuck who never got the hit. See if these cover songs surprise you as well – I have the more familiar version(s) first, with the original showing up last in the group:

( I coulda been a contender. I coulda been somebody, instead of a bum, which is what I am… )