The KLEN-FM call sign was originally used on the 100.7 MHz frequency, now used by
KOLT-FM. That facility signed on in 1979 as KLEN-FM before changing its call sign to KKAZ in 1980. In the 2010s, the station ran a Country music format, branded as "106.3 Cowboy Country". In the Spring 2020 Nielsen Audio ratings, KLEN-FM held a 2.4 market share, often competing directly with iHeartMedia's country stations in the market. On January 15, 2021, KLEN began simulcasting sister station
KCGY, with a new format expected to debut on KLEN, once the simulcast ended. On February 1, 2021, KLEN dropped the simulcast with KCGY and switched to its current format. ==Former logos==