KMET was a Los Angeles FM radio station owned by Metromedia (hence the "MET" in its call sign) that first took to the air in June 1968 at 94.7 MHz. It signed off on February 14, 1987. The station, nicknamed "The Mighty Met", was a pioneering station of the "underground" progressive rock format.
As with many FM stations at the time, KMET featured an automated format in June 1968 (with female voices and middle-of-the-road music). The origin of KMET’s freeform rock music format came about due to events at a rival radio station. In 1967, popular Top 40 disc jockey Tom Donahue (Rock Radio Hall of Fame inductee 2015) and his wife Raechel brought the FM underground rock sound to KMPX in San Francisco, and soon, along with legendary L.A. Top 40 personality B. Mitchel Reed, to KPPC-FM in Pasadena. Both stations quickly became popular with their innovative formats, and brought the owners more success than they ever encountered before. But it was to be short-lived. After conflicts with the stations’ owners, the Donahues, Reed and the rest of the KPPC and KMPX staff left both stations and went on strike. As prospects for resolving the strike looked hopeless (the owners had hired scabs to continue the rock programming), Tom Donahue looked elsewhere, and eventually convinced Metromedia to install KPPC’s format at KMET. They did likewise at KMET’s sister station, KSAN-FM in San Francisco. Many of the personalities at both stations wound up at Metromedia.
The KPPC format was only mildly successful. After leaving KROQ AM/FM, Shadoe Stevens was hired by General Manager L. David Moorhead in 1974 to create something new for the struggling format KMET had put in place. With a staff that included B. Mitchell Reed, Stevens, Jimmy Rabbitt, Brother John, and ("The Burner") Mary Turner, Stevens introduced a new rock format that retained some of Donahue's progressive freedom but gave it energy and consistency that featured programming and high production values similar to those that had been integrated at KROQ. Stevens also designed a futuristic billboard campaign called "Hollywood as seen from Mulholland Drive in the year 2525."