A while ago at a HALO release party, Nathan Fillion and Alan Tudyk were busy playing the game when Justin Bieber arrived and asked Nathan to stop playing because he needed the whole room to himself. Naturally, Nathan behing the awesome nerd that he his totally turned him down. Be sure to jump ahead to 28:32 in the video below to hear the tale from Alan Tudyk himself.

[The Nerd Machine | Via TMS]