No particular order here.
"Shame on the Night" by Jorn (originally by Dio)
http://www.youtube.com/watch?v=N4idLUzwKSA
"I Walk the Line" by Those Poor Bastards (originally by Johnny Cash)
http://www.youtube.com/watch?v=QgJkYpukzBc
"Cowboy Song" by Anthrax (originally by Thin Lizzy)
http://www.youtube.com/watch?v=jtnY4D5jtMo