There's been one pressing question on our minds, a matter of unspeakable weight and almost paralyzing urgency that has us gasping for air, crawling commando-style toward a dust-covered dictionary: WHAT'S A MUSTACHE?

Thankfully actors Jonah Hill ("Superbad," "Cyrus") and Elmo ("Sesame Street," "Apocalypse Now") are here to provide relief and clarity.

And as some YouTube commenters have already pointed out, that "awesomely sweet mustache" definitely makes Jonah look like Gene Shalit.

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