WSMZ is a radio station which is part of the Smile FM radio network licensed to Crystal Valley/Hart. It began operation in November 2010. On December 13, 2010, WSMZ received permission to increase power from 1.1 kW to 1.5 kW and immediately boosted power. WSMZ broadcasts the Smile FM programming. It officially retransmits the signal of WHYT, however, some of the programming comes from flagship station WLGH in Lansing. WSMZ is owned by Smile FM.