The first full-length album in six years from Jack Black and Kyle Gass' comedy-cock-rock duo is chock-full of swaggering pomposity. But too many of its gags sound like they've been festering since the Pick of Destiny days; perhaps all the dick jokes here are meant to distract you from the mold growing on some of the other gags. "Rock Is Dead" is a rollicking caricature of dudes who won’t stop lionizing the past, but the gloppy stagehand rant "Roadie," the noxious ode to a middle-aged woman "39" and the barely parodic "Throw Down" are so bombastic you wonder if Black and Gass have finally turned into the overblown wanksters they parody.

Listen to Tenacious D's 'Rize of the Fenix':

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“Time to Pretend”

Listening to MGMT’s breakthrough song, one might interpret it as being about the excesses of rock stardom, but it’s actually about the duo’s pet praying mantis. Ben Goldwasser and Andrew VanWyngarden told Rolling Stone they got the idea from the insect's jerky movements. The mantis died, but the two bandmates kept the egg sack and allowed the hundreds of eggs to hatch. “We tried to name them all, but they died after a day,” said Goldwasser, with VanWyngarden chiming in, “But the praying mantis dance inspired us.”