The acclaimed 572nd Air National Guard Band of the Smoky Mountains will have a free performance this Wednesday at the Warren County High School Auditorium. Doors open at 5:30 p.m. and the performance is scheduled to start at 6 p.m.The Warren County Band Boosters have organized the show to bring a top-flight band to the area. The Air National Guard Band has performed in 21 states, Jamaica and the Dominican Republic.