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Paul Rudd hosted "Saturday Night Live" over the weekend with musical guest ONe Direction. SNL alum, Rudd's "Anchorman 2" co-star Will Ferrell, stopped by for a cameo in the opening monologue.  The two were joined by Steve Carell and David Koechner, all in character from the new movie.  With the help of musical guests One Direction, they re-created one of the original "Anchorman's" most memorable scenes - an acappella version of "Afternoon Delight."  

Watch One Direction and the cast of Anchorman 2 sing "Afternoon Delight":

The British boyband took the opportunity to poke fun at their own stardom.  Paul played a One Direction superfan, getting competitive with a group of young girls while waiting for the guys to give him an autograph.

Watch 'One Direction Concert Line':

The boys performed "Story Of My Life" and another song of their new album called "Through The Dark."

Watch One Direction perform "Story Of My Life":

Watch "Through The Dark":