I would suggest the unknown cover is Riff Raff, and where you've got Riff Raff they actually did Whole Lotta Rosie. Both AC/DC covers, obviously.
Good to see yet another person actually able to watch a GN'R show for the great show it is.
1/12 Judas Priest
3/12 Deep Purple
5/12 Dan Patlansky
11/12 Dead Daisies