Fan favorites Go Soo and Han Hyo Joo will guest-star on an upcoming episode of Running Man.  A rep from the show stated that the actors are "busily filming for the show in the North Jeolla Province at the moment."  Korea's hit variety show will put the actors to work with a variety of missions and races.  The rep from the show went on to state, "When the flower boy and girl of the entertainment industry appear as guests, the Running Man  members could not hide their excitement.  Both Go Soo and Han Hyo Joo are showing off a whole new talkative and enthusiastic side and are having a great time filming."  We won't have to wait too long for this, as the episode is slated to air in the beginning of December. Are you as excited for this as we are?