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December 05, 2017

WATCH: Jimmy Fallon does his best Bruce Springsteen in 'Robert Mueller's Comin' to Town'

Jimmy Fallon again channeled his inner-Bruce Springsteen on Monday night, this time in a musical spoof poking fun at the FBI's ongoing investigation into Russian meddling in last year's presidential election.

"The Tonight Show" host showed off his best impression of Springsteen's "Santa Claus Is Comin' To Town" – with a twist, of course.

"Robert Mueller's comin' to town," Fallon belted throughout the three-minute segment.

Mueller, an attorney and former FBI director, was appointed earlier this year as the special counsel in charge of the FBI's probe into possible collusion between President Donald Trump's administration and Russia.

Fallon mimicked the New Jersey rocker's "Born in the USA"-era attire, donning a red headband, dark glasses and a vest and began the song by asking if everyone's "been good this year."

"Jared, you been good? Everybody in the Trump administration been good or what? That's not many. That's not many," he said before breaking out in song.

"You better watch out, you better not cry, you better not lie to the FBI," Fallon sang. "He's making a list, naughty or nice, he's gonna find out just who to indict."

"He knows that you tried to collude," he sang later. "It isn't fake news for goodness sake."

The full clip can be found below.