Ten choruses of the Norwegian Singers Association of America will convene at the Sioux Falls Convention Center on June 9, 10, 11 to form a mass chorus of approximately 225 men. They will present a Grand Concert Saturday June 11 at 7:00 PM. A Parade of Choruses will be held Thursday, June 9 at 7:00 PM.
More information can be found here.
A full schedule of events and activities can be accessed here.