The Bonneville International country music station has an effective radiated power (ERP) of 100,000 watts.

On July 7, 1980, 98.5 switched its call letters to KYGO; later that year, the station changed formats from contemporary hits to country music.

In 2007, KYGO-FM was named "Country Music Station of the Year" in a top 25 market by Radio & Records magazine.

Other nominees included WUSN Chicago, WYCD Detroit, KEEY-FM Minneapolis, WXTU Philadelphia, and KSON-FM San Diego.

[6] On December 8, 2014, Entercom announced it would purchase Lincoln Financial Group's entire 15-station lineup (including KYGO) in a $106.5 million deal.

[8] However, on July 14, 2015, the Department of Justice ruled that Entercom was over ownership and total market revenue limits in the Denver market; as a result, Entercom decided to spin off KYGO, KOSI, KKFN and KEPN to Bonneville International in exchange for Bonneville's Los Angeles station KSWD (now KKLQ).

Though Mueller denied touching Swift inappropriately, KYGO-FM general manager Robert Call fired him on June 4.

[10] A jury found Mueller liable for assault and battery and awarded Swift one dollar, the amount she had sought.