Jack Black is a comedian, actor, writer, and metal-head who wrote and starred in the 2001 film "Tenacious D in The Pick of Destiny" about a duo called Tenacious D. The film was a box office flop but found success through DVD sales. It was certified Platinum in the US and Gold in the UK and Australia. The film's most famous song is "Tribute", which pays homage to the greatest song in the world.