 KSB has performed internationally at the Manaus Opera House in Brazil, the Hanoi Opera House in Vietnam, the Petronas Philharmonik Hall in Malaysia, La Madeline in France, Hall Bulgaria, and in venues throughout Alaska, Canada, South Africa, Japan, Thailand, Cambodia, Australia, Monaco, Germany, Austria, and Chile.The Boychoir has been the guest choir for July 4 celebrations in the US Embassies of Tokyo, Kuala Lumpur, Vienna, and Sofia.The Keystone State Boychoir is part of the Commonwealth Youthchoirs (CY), a non profit organization that serves over 600 children.