"Elementary School Musical" is the season premiere of The Simpsons' twenty-second season. It aired on the Fox Network in the United States on September 26, 2010. In this episode, Krusty the Clown invites Homer to the Nobel Peace Prize Ceremony in Oslo, Norway. Later turning out to be a hoax, Krusty is sued by the International Court of Justice for his many instances of public indecency. Meanwhile, Marge takes Lisa to a performing arts camp for a week.