KSTP traditionally programmed a full service MOR radio format, in the shadow of its chief competitor, CBS affiliate 830 WCCO. In 1965 a new FM station, reviving the KSTP-FM call sign, was founded. KSTP was the radio home of the Minnesota Vikings from 1970 to 1975. In 1973, KSTP broke away from its longtime adult format and became one of four area stations at the time to program a Top 40 format, as "15 KSTP, The Music Station", competing with other Top 40 AM stations WDGY, KDWB and later, WYOO. The competition would eventually shake itself out, with outrageous rocker WYOO dropping out after being sold in 1976, and then the staid WDGY switching to country music the following year. As for uptempo hits station 15 KSTP, it went from a tight Top 40 format to leaning adult rock in 1978, to leaning adult contemporary in 1979, to evolving into adult contemporary/talk by 1980, before it officially shifted to news/talk by 1982. Most Top 40 rock music, by this time, had moved to the FM band.