Maybe it's just my thing, but I love to hear different artists covering the same song. Even when they make a mess of it, it's enlightening and amusing. Thought we could try a thread of them, what do you say? I'll kick if off:

I first heard the song Hurt on a Johnny Cash album, thought it was amazing. Video of the Johnny Cash version. Turns out the song was written by Trent Reznor, so I had to check that out. Not as good, in my opinion. Something too self-pitying and emo about the original. On the other hand, there's a lovely duet of Reznor and David Bowie that redeems the song. Good stuff, actually. The duet rescues the song from the pit of self-pity.

Lastly, I note that Kermit the Frog has recorded a version. Most amusing.

So that's one song.