The station was assigned the call sign WZLC on February 26, 1993. At first, it simulcast the country music format of co-owned WGLC (Mendota, Illinois). WZLC was put on the air to give WGLC coverage in the southern part of the La Salle/Peru area. On February 1, 1995, the station changed its call sign to the current WALS. and started carrying separate country music programming.