Justin Timberlake and Jimmy Fallon Take 'Best Friends Challenge'

Justin Timberlake stopped by The Tonight Show Starring Jimmy Fallon, and to prove how good of friends the two are, they took the "Best Friends Challenge." The challenge involves two friends answer questions about each other at the same time, kinda like the old Newlywed Game. The game started off as you might expect, with Fallon and Timberlake answering the questions correctly. For example, their favorite mode of transportation while hanging out is a tandem bicycle. Apparently they enjoy riding it around New York. While Fallon forgot that Cheers was Timberlake's favorite show growing up, they managed to get the rest of the questions correct. One of the funnier moments as when they sang their favorite song, which is is titled, "Keeping Your Poop in a Jar." Singing songs like that are truly what friendship is all about.