 The station was originally awarded as KCNQ but signed on in 1985 as KKDD, licensed to Brush, Colorado with an easy listening format.Its call sign changed to KSIR on July 1, 1991.On March 20, 2006, as the station was being relocated to Denver, its call sign changed to KSYY-FM to stand for "Sassy 107" and its soft adult contemporary format.