Tenacious D, for those of you who don't know, is the greatest band ever, in the world, and the known universe. This comedy rock duo powerhouse is comprised of lead singer Jack Black, and lead guitarist/vocalist Kyle Gass. They have been rocking our socks off since they joined forces in 1994 combining their individual awesome sauces to create 'The D'. So, if you didn't know, now you know. If you aren't too scared to rock out hard, you can now watch the video that I have included below.