I think we have a winner at this point for worst possible cover ever. Don't listen to this unless you really want to damage all ability to believe that good music is still out there to be created in the world. It really is that bad.

This is Everlast covering Folsom Prison Blues. And he uses a sample from Insane in the Membrane by Cypress Hill.

http://www.youtube.com/watch?v=VOngsHeOPas