Next Cover, another well known set, Hurt
Original by Nine Inch Nails
Cover by Johnny Cash
Sevendust, Underoath, and a lot of other bands also did covers of it, but those are mostly regurgitations of the NIN version.
I better post the next one as well before I forget the links.
The original Blues version of Black Betty by Huddie William Leadbetter aka Leadbelly.
This was a rather hard to find song.
LivinBlues- Home Page Along with the slightly more well know version by the Southern rock Group, Ram Jam
Along with the Modern Aussie Incarnation by Spiderbait.