Local Christian rock group Three Thirds will perform a free concert at Bethel Presbyterian Church, 19920 Bethel Church Road, Cornelius, March 10 at 6 p.m. The band, made up of Mark Ariail, Abe Lehman, Alvin Knox, Scott Cribbs and Franko Semanko, play music by The Newsboys, David Crowder Band, Kutless and more. A hot dog dinner and infant childcare will be provided. For more information, call the church office at 704-892-0546.