Spinal Tap, the world's loudest band, is chronicled in a bogus documentary in "This is Spinal Tap" (1984), directed by Rob Reiner and written by stars Christopher Guest and Micheal McKean, who later made "Best in Show."
Nigel Tufnel: You can't fucking concentrate because of your fucking wife! Simple as that, alright? It's your fucking wife! David St. Hubbins: She's not my wife. Nigel Tufnel: Well whatever FUCK she is, alright? You can't concentrate!