Slipknot's KNOTFEST!

A mysterious masked duo has recorded an epic acoustic cover medley of bands playing Slipknot'sKNOTFEST! What groups/songs you can identify?

WATCH HERE: http://www.revolvermag.com/news/viral-video-masked-duo-perform-acoustic-cover-medley-of-knotfest-bands.html?preview=true