You're more used to seeing him in a large, freakish mask and shouting/singing from the guttural depths of his soul on stage with metal band Slipknot - but frontman Corey Taylor cut quite a different figure on TV the other night.
Taylor was a panellist on BBC2 show QI alongside regular Alan Davies, Irish comedian Aisling Bea, comedian Ross Noble and host Sandi Toksvig.
At one point, he demonstrated his ability to crack his knuckles (below), but by all accounts was a charming panellist - as well as a big fan of the show.
Watch below: