Kyle Richard Gass (born July 14, 1960), also known as
KG or
Kage, is an American rock musician, singer-songwriter and actor. He is a member of the comedy rock band
Tenacious D, winner of a
Grammy Award for Best Metal Performance, alongside longtime friend
Jack Black. He also has his own
supergroup called
The Kyle Gass Band and he was also a member of the band
Trainwreck before it split up in 2011. In Tenacious D, Gass plays lead guitar and sings backup vocals, and also plays the role of Black's comic
foil in most of their comedy routines. He is the godfather of Black's son.