The Crosstones, a co-ed a cappella group, will perform a free concert at St. Gabriel’s Church in Marion on Sunday, Aug. 16 at 6 p.m.

Founded in 1996, The Crosstones is Bates College’s oldest co-ed group and have been performing nationally and locally for 15 years. All are welcome to this free hour long concert. A reception will follow. St. Gabriel’s is located at 124 Front St.