St. Paul's Choir School, Harvard Square is the only Catholic boys Choir School in the United States. Enrolling students now in grades 3-8. Saint Paul’s Choir School is a school for boys in grades 3 through 8 and is a vital part of Saint Paul’s Parish in Harvard Square. Guided by the teachings of the Catholic Church, we work in partnership with committed parents and inspirational teachers to form the faith, character, and intellectual and musical abilities of our young men. Our goals are to help students pursue their highest God-given potential, prepare them for the strongest secondary schools and beyond, and equip them to become virtuous leaders who serve God and the world.