Los Angeles, California's 105.5 KNAC started out in the late 1960s as a free form station, playing typical album rock artists alongside San Francisco psychedelic music as well as R&B, Soul and Funk. By the late 1970s they had evolved into an Alternative music outlet with the onset of Punk and New Wave. This phase lasted until 1986 when KNAC turned to Heavy Metal and became one of the most iconic stations in the history of L.A. radio and a lifestyle for many of their diehard listeners.
I first saw the above sticker in the 1988 video for Bon Jovi's Bad Medicine. Fans waiting in line for a Bon Jovi concert are wearing KNAC shirts and holding white-on-black decals which became ubiquitous for a time in the late 80s.