Tenacious D

Tenacious D, frequently referred to as "The D," is an American satirical rock duo formed in Los Angeles, California, in 1994. Consisting of actors and musicians Jack Black and Kyle Gass, the band is celebrated for a style often labeled "mock rock," which blends absurdist comedy with high-energy rock and heavy metal. Since their inception, they have cultivated a persona as "the greatest band in the world," a claim that serves as a cornerstone of their comedic and musical identity.

The partnership between Jack Black and Kyle Gass began in 1989 at the Edinburgh Fringe Festival in Scotland. At the time, both were members of the Los Angeles-based theater troupe The Actors' Gang. While their initial relationship was competitive—Gass felt his position as the troupe’s primary musician was threatened by Black’s arrival—the two eventually bonded over music. Gass taught Black how to play guitar, while Black assisted Gass with his acting craft.