Watch Steve Carell, Jimmy Fallon Play 'Blow Your Mind' on 'Tonight Show'

Actor and host wear big wigs and fake mustaches to determine truth behind Questlove's unbelievable facts

Steve Carell visited 'The Tonight Show' to talk 'Despicable Me 3' and play a game of "Blow Your Mind" with Jimmy Fallon.

Steve Carell visited The Tonight Show to talk Despicable Me 3 and play a game of "Blow Your Mind" with Jimmy Fallon.

Donning big wigs and fake mustaches for seemingly no purpose other than to improve the slow motion replays, Carell and Fallon are read a series of implausible facts by the Roots' Questlove. They must then determine whether the fact is real or not.

"If you choose wrong, we will blow your mind and you will be blasted in the face from the tube in front of you," said the drummer, whose head hovered over the game via green screen.

Questlove then recites facts like "The Eiffel Tower shrinks by six inches in the cold" and "Cotton candy was invented by a dentist" as Carell and Fallon face the specter of a gust of air and props if they're incorrect. Surprisingly, almost all of the unlikely facts are true, but Carell stumbles on the final true/false question: "Is the thumb a finger?"