Fallon hosted a fake NASCAR race - the first annual Tonight Show 500 - in Rockefeller Plaza with Justin Bieber, Jesse Tyler Ferguson and Tariq from The Roots, as well as four real NASCAR drivers including Jeff Gordon.
Team Jimmy (Fallon, Gordon, Ferguson and Martin Truex Jr.) competed against Team Tariq (Tariq, Bieber, Kevin Harvick and Kyle Busch) in a relay-style race. Spoiler: Team Tariq prevailed, thanks to a surge from Bieber, who chalked his win up to experience. "I've learned a lot street racing," said the singer, who was arrested in 2014 for illegally drag racing.
Check out the race here: