Mundelein High School’s four jazz groups will perform in concert Wednesday, Jan. 18, at 7 p.m. in the MHS Auditorium. Admission is free.

The groups performing include the Jazz Lab Band, Jazz Workshop, Jazz Orchestra and Jazz Ensemble. Some of the numbers to be performed are Things Ain’t What They Used to Be, arr. Alan Baylock; Harlem Airshaft by Duke Ellington; Seven Steps to Heaven, arr. Mike Tomaro; Night and Day, arr. John Berry; and Walkin’ Shoes, arr. Mark Taylor.