Slipknot releases its sixth studio album and first in five years, We Are Not Your Kind, today. While 2014’s .5: The Gray Chapter introduced an entirely new rhythm section to the band, We Are Not Your Kind features the arrival of just one new member — an unnamed percussionist who replaced Chris Fehn earlier this year. Guitarist Jim Root told Rock Sound that he is “surprised” fans haven’t been able to figure out the identity of the band’s newest member, who fans have nicknamed “Tortilla Man.” Root remarked, “I’ve met this guy before, I know who he is, but he’s really kind of elusive, even around our camp. I’ve had some people tell me, ‘Don’t tell us who he is. We’re having fun trying to figure it out!’ So I’m gonna keep my mouth shut about all of that and see what happens. Eventually someday someone’s going to figure it out.” Slipknot’s other percussionist, founding member Shawn “Clown” Crahan, refused to reveal the identity of the band’s mysterious new ninth member in an interview with Kerrang! magazine, saying it was “nobody’s f**king business.” Slipknot’s “Knotfest Roadshow” North American headlining tour kicked off late last month. The band plays the Iowa State Fair in its hometown of Des Moines, Iowa on Saturday night.