Quick: What do Dave Grohl, Jimmy Kimmel, Val Kilmer and Josh Groban have in common?
They're all in the new Tenacious D music video.
Jack Black and Kyle Gas have just released a new Tenacious D video for "To Be the Best," a song that tells the story of how the band overcame the lackluster success of The Pick of Destiny.
Get ready for a lot of cameos, including Dave Grohl as their personal trainer. Grohl has been the band's drummer on every Tenacious D studio album.
Tenacious D will release their new album, Rize of the Fenix, on May 15.