KYGA signed on in 1957 with the call letters KRCW. In 1965, the call letters changed to KTMS-FM. In time, the station would go through format changes and call sign changes before becoming a top 40 station branded as "Y97" with the KHTY call letters. In 1998, the station switched to a smooth jazz format. In March 2005, Cumulus decided to move the smooth jazz format to 106.3 KMGQ. The modern adult contemporary format on KRUZ 103.3 was then moved to this station. As a result, the station changed its call letters to KRUZ.