Fresno State Jazz Orchestra and Jazz Ensemble will present its annual “JAZZ-O-WEEN” concert complete with Halloween costumes at 8 p.m. Thursday, Oct. 31, at the Fresno State Concert Hall (Music Building). The family-friendly event is free and open to the public. Costumes are encouraged for the concert hosted by the College of Arts and Humanities and the Department of Music. Otto Lee will direct the orchestra. INFO: Dr. Alan Durst, 559.278.2537.