Stepehn Colbert stopped by The Tonight Show last night to promote his movie Peabody and Mr. Sherman, but he also took the time to play a game of Truth or Truth with Jimmy Fallon. Colbert is known for his truthiness, so he naturally questioned Fallon's inability to tell a lie.

The most important thing we learned is that Fallon regrets not learning the dance to "Single Ladies." Wait — Jimmy Fallon doesn't know the dance to "Single Ladies"? That seems like it would be right up his alley. We're availabe for lessons, Jimmy. Watch the full video below. 

[via YouTube]