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 / Updated  / Source: TODAY
By Elizabeth Murray

Chris Pratt and Jimmy Fallon teamed up to sing some karaoke — and it was, well, nonsense!

The pair played a round of "Nonsense Karaoke" on "The Tonight Show" Friday, singing popular songs like "Uptown Funk," only with hilariously replaced "nonsense" lyrics.

"This one for them drunk squirrels. Them drunk squirrels love Aspercreme," Pratt sang.

Watch until the end to catch the duo's take on Kelly Clarkson's "Since U Been Gone."

Also during the show, the "Jurassic World" star revealed to Fallon that his son, Jack, thinks Pratt is a firefighter.

"I'll say 'hey bud, I'm going to be back tomorrow, I gotta go to work.' And he'll go, 'Are you going to work on your fire truck?'"

To which Pratt said he responds, "Yes I am. Yes I am, son."