From the comedic minds of Jack Black and Kyle Gass comes a raucous musical adventure that chronicles the origin story of the greatest rock band on earth. The film follows aspiring musician JB, a passionate but directionless dreamer, who meets the classical guitar prodigy KG in Venice Beach, California. United by their shared love of rock and roll and their desperate need for creative inspiration, the duo forms Tenacious D. Their quest for musical greatness leads them to discover the legend of a mysterious, demonic guitar pick crafted from the tooth of Satan himself. Believing this artifact is the key to unlocking their true potential, JB and KG embark on a wild, cross-country road trip to steal the pick from the Rock and Roll History Museum. Directed by Liam Lynch and featuring a star-studded cameo lineup including Dave Grohl, Ben Stiller, Tim Robbins, and Amy Adams, this R-rated musical comedy blends over-the-top fantasy sequences, original rock anthems, and absurdist humor into a heartfelt and hilarious tribute to the power of friendship and the relentless pursuit of rock stardom.