WSMK signed on the air in 1991.[4] It was an urban contemporary station known as "Smokin 99.1". This was the second urban station in the Michiana area, the first having been the former WLLJ (910 AM) in Cassopolis, which later switched to oldies as WGTO.
On February 4, 2005, WYPW (95.7 FM), formerly adult contemporary WLRX, became "Power 95.7"; it was in direct competition with "Smokin 99" for urban and hip hop music listeners. (WYPW is now Catholic radioWRDI.) In 2006, WSMK decided to tweak its format to a rhythmic adult contemporary approach and became "Movin' 99.1, Michiana's Greatest Hits", with the format delivered via satellite from Waitt Radio Networks.
In October 2010, with WYPW changing to classic rock as WAOR, 99.1 WSMK transitioned back to locally originating programming and brought back the "Smokin' 99.1" slogan.
