I just finished this interesting podcast from Malcolm Gladwell's Revisionist History about the song "Hallelujah" by Canadian songwriter Leonard Cohen. The most famous version of this song is sung by Jeff Buckley which I didn't know until now was actually a cover of another cover of the original. And the original song by Leonard Cohen? It took forever to write. There are many, many, many verses and most of the covers you hear of Cohen's song pick and choose the verses rather loosely. It's a really fascinating look at how one song evolves from pen and paper to pop culture.
I've included Leonard Cohen's version and Jeff Buckley's version below.