[SuchFriendsAreDangerous]

Again, what killed Tenacious D was they never crossed that threshold to make their music seem intentionally serious. They played themselves as a novelty, as just some kind of musical skit comedy show, and that was NOT what Zappa and the Mothers were doing, even though the Mothers are probably the most hilarious music ever performed. Still, while being funny, the Mothers never lost sight of being legitimate musicians, not just some kind of schticky comedy routine.. I don't think Jack Black ever really took that shit all to serious.