It's no secret that One Direction are boy band champions when it comes to silly TV stunts (remember when they pranked eachother on Nickelodeon, and then their fans at Madame Tussaud's?), but this late night talk show appearance might be their ultimate comedic masterpiece.
The British pop group participated in a weird and hilarious "Skype Scavenger Hunt" on Thursday's episode of "Jimmy Kimmel Live." The boys were separated into two teams -- Niall/Louis on one, Harry/Liam/Zayn on the other -- and stationed in different dressing rooms to be given challenges by the comedian. Highlights included toothpaste mustaches, ridiculous American accents and Harry taking off his pants. (Yes, you read that right.)
Watch them battle it out in the video above.
They were there to promote their new movie, "This Is Us," which hits theaters in August.
Directioners: Who do you think was MVP of each "team"? What's the funniest One Direction interview you've ever seen? Sound off in the comments below or tweet @HuffPostTeen!