Jazz greats Ella Fitzgerald , Sarah Vaughan , John Coltrane , Miles Davis and Duke Ellington When I was a junior in college for broadcast journalism, I was hungry for all of the experience I could get, so I volunteered for a shift as a DJ for the school-owned, professionally run radio station at the University of Missouri - Columbia . The director made sure all students took a first shift for the classical music show, primarily because he had trouble filling that spot. I did