Jazz legend Ornette Coleman suffered a medical emergency during his performance on the last night of Bonnaroo in the 'Something Else' Jazz Tent. Midway through a song, the innovative alto saxophonist collapsed on stage. According to his publicist, the incident is believed to be caused by heat exhaustion. Following the collapse, Coleman was alert alert and speaking, telling folks backstage that he wasn't suffering any symptoms prior to his performance. However, Coleman has been taken to a local hospital in Tennessee's Coffee County for further treatment.