Three-time Country Music Association Female Vocalist of the Year Martina McBride will be performing tonight at the Marion County Fair. The 2019 Academy of Country Music ICON Award winner known for her hit songs “Independence Day” and “A Broken Wing” will be on stage at 8 pm. Tickets are still available and are $40 and can be purchased at the Knoxville Raceway ticket office. Gates open at 6:30 pm.