Tenacious D, formed in 1994, is a comedy rock duo featuring Jack Black and Kyle Gass. Known for their fusion of absurdist comedy with rock music, they have released albums such as "Tenacious D" (2001), "The Pick of Destiny" (2006), and "Rize of the Fenix" (2012). Their theatrical vocals and acoustic guitar play are notable, and they won a Grammy for "The Last in Line" in 2015.