KLKK

The station was initially launched at 5:30 a.m. on February 11, 1978, under the call letters KZEV, and broadcast on 103.1 FM. The station aired a rock music format as "Rock 103", which later became "Z103." The change to "103.1 The Fox" and KLKK call letters took place on August 1, 1990, after being sold to Linder Radio Group. KLKK relocated to 103.7 FM on April 22, 2000.

In January 1993, James Ingstad Broadcasting bought KLKK, and became co-owned with KGLO and KIAI. Cumulus Broadcasting bought the station in 1998. Two years later, Clear Channel Communications bought the station. In 2007, Clear Channel sold off many of their small market stations, including KLKK and sister stations KGLO, KIAI and KSMA-FM, to Three Eagles Broadcasting. Due to market ownership limits, as Three Eagles already owned KLSS, KRIB, and KYTC, KLKK and KSMA-FM were immediately spun off to Coloff Media, which is based in nearby Forest City, along with their Charles City and New Hampton stations KCHA, KCHA-FM and KCZE.

The station broadcasts a classic rock format with many album rock selections as well. Its staff includes James Shaman, Mark Skaar, Harry O'Neal and Rob Getz.

KLKK is the North Iowa affiliate for The Bob and Tom Show. In addition, the station airs other syndicated programs, including The Tour Bus, Chop Shop, The Rockin' 70s and The Rockin' 80s with Mark Xander, Time Warp with Bill St. James, The Bluesmobile, and Live In Concert. KLKK is also the North Iowa affiliate for the Minnesota Vikings.