JOLIET, Ill. — When University of St. Francis freshman Tyon Mason stepped onto campus last month, the aspiring musician/producer never expected to hear himself on a major Chicago radio station just three weeks later.

Mason, of Chicago, wrote and performed the lyrics and helped produce a theme song for a segment on 101.9 WTMX-FM’s Eric & Kathy Show. The 30-second spot, which debuted Sept. 10, is used to introduce the show’s “Mannelly Mondays,” a recurring segment featuring Chicago Bears long snapper Patrick Mannelly.