Kyle Gass is the quieter, more dignified half of Tenacious D.. comparatively speaking.
He is the Teller to Jack Black's Penn, the Page to his Plant, the Tony Iommi to his Ronnie James Dio.
Often overlooked, often underappreciated, constantly bald and occasionally naked, Kyle (or KG to his friends) is the rock, the foundation, the very backbone of The Greatest Band On Earth!