The famous UW MadHatters, 14-piece all-male a Capella group, will perform 1 SHOW ONLY on Sunday, Oct 23, 2:00 pm. Tickets only $7 Students/Seniors and $10 for adults at oregonsd.tix.com. Or purchase your tickets at the door. ALL proceeds benefit vocal music and the fall musical at OHS. RJ Heim, former OHS student will be performing with the MadHatters. Opening acts include the McFarland High School Blue Notes and the UW Whitewater Hawkapella. Don't miss this AMAZING SHOW and support OHS!