"Dreaming of becoming a rock god, Midwesterner JB (Jack Black) heads to California, where he crosses paths with idler KG (Kyle Gass) -- giving rise to the musical duo Tenacious D. Together, the would-be rock icons set out to prove they're the greatest band in history. But to ensure their place in the pantheon of rock, they'll have to pinch a fabled guitar pick that endows its owner with singular talent."