A Cappellooza, OWU’s annual voices-only showcase, returns to Gray Chapel inside University Hall, 61 S. Sandusky St., Delaware. The two-hour concert will feature performances by student a cappella groups from Ohio Wesleyan and other colleges, as well as the professional a cappella group Musae. The all-women contemporary vocal band features “fresh, electro-pop sound.” Its members are veterans of NBC’s “The Sing-Off,” Pop TV’s “Sing It On,” and the popular film “Pitch Perfect 2.” A Cappellooza tickets are $5 general admission for individuals outside of OWU. The concert is free for Ohio Wesleyan students and employees with valid university IDs. Doors will open at 6:30 p.m. A Cappellooza is organized by OWU’s student Campus Programming Board.