You're probably aware of the beautiful friendship that is Justin Timberlake and Jimmy Fallon. They do everything together. You could say they're just N*SYNC.
So when Justin appeared on the Tonight Show on Wednesday, Jimmy obviously decided to put their friendship to the test with the Best Friends Challenge.
The game goes like this: One person reads a question, then both people have to write down how they think that person would answer. This was the first question.
They both immediately cracked up over what was apparently a private joke, and we all know only BFFs have private jokes.
The answer was, of course, a tandem bicycle.
Then there was this question, which seems innocent enough, right? Can't be that funny, right?