See Slipknot, Judas Priest, Korn and More Slay Knotfest 2015

For decades, Slipknot have set out to prove that they’re the slimiest, grisliest alternative to mainstream music around, and for three years now, they’ve tried to do the same with festivals. The masked, nine-person traveling horror show’s annual Knotfest, held this past weekend in San Bernardino, California, serves as a…