13 is the story of a Jewish boy named Evan, who moves to Appleton, Indiana from New York City after his parents get a divorce. He first befriends his neighbor Patrice, whose only other friend is Archie, the terminally ill nerd. Evan decides that, in order for his Bar Mitzvah to be a hit, he will have to become popular and unintentionally gets himself involved in a fight over the quarterback Brett between best friends Kendra and Lucy. Hilarity Ensues. With music by Jason Robert Brown and a book by Dan Elish and Robert Horn. It was the first Broadway musical with an entirely teenage cast.