The Karns High School Marching Band is the most publicly visible ensemble in the Karns Band Program. Each year, students from grades 8-12, perform their demanding field show at venues all over the state, region, and nation. The marching band meets everyday during school in the fall semester, as well as after school on Tuesday's and Thursday's.
The band also performs at school events including home football games, pep rallies, and various other school activities. The band is the featured each year in the community including the Knoxville WIVK Christmas Parade, Veteran's Day Parade, and the Karns Community Christmas Parade.