I’ve put them in order of quality. So start at the top and quit when you can’t take it any more.
The first three are pure awesome.
Slightly less awesome:
This one is actually a live performance (from Belgium):
This guy has literally no idea about the guitar part (but quite a voice):
Ps, to anyone who completely skipped the ending, (and there’s quite a few of you), I’m a little disappointed… :)
Pps, I like to think they all got the lyrics from here…