Will Ferrell and Mark Wahlberg made an appearance on Scott Mills' BBC Radio 1 for a very important reason — to partake in the playground insults game. The game is pretty self-explanatory: The two grown men trade playground zings, and whoever laughs first loses.
Sounds simple enough. Keeping a straight face, however, turned out to be quite the challenge for both actors.
Watch the video below to see who cracks first.
Heads up: This video contains some profanity.