Watch Will Ferrell take down Mark Wahlberg with a series of funny insults

Mark Wahlberg: 'Your hair looks like a brillo pad I want to scratch my sack with.'

Will Ferrell: 'You wish you could scratch my head with my brillo pad if you had a sack,  you sackless b*tch.' Mark Wahlberg and Will Ferrell traded insults as they visited Radio 1 to promote their latest film. "You're a poor man's Mike Myers" was another swipe from Ferrell, who finally cracked his co-star when he mentioned a certain boy band that Wahlberg first found fame with. Watch the two go at it below, but we can't be held responsible if you drunkenly use some of these on your family members at Christmas... https://www.youtube.com/watch?v=ROeadOshACA&feature=youtu.be