Brian Williams Raps 'Baby Got Back' On Jimmy Fallon. We Like It And We Cannot Lie

Sir Mix-a-Lot is having a moment.

First the Seattle rapper and derriere enthusiast performed his timeless ode to posteriors "Baby Got Back" with a full symphony orchestra, and now he gets to watch NBC new anchor Brian Williams "rap" the classic 1992 track in another of Jimmy Fallon's editing masterpieces.

Williams has previously rapped everything from Dre and Snoop's "Gin and Juice," N.W.A's "Straight Outta Compton" and Sugarhill Gang's "Rapper's Delight." But this may be his, er, biggest yet.

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