The station signed on the air on September 1, 1970.[5] Its original call sign was WLLL-FM, broadcasting at 98.3 MHz. It was the FM sister station to WLLL930 AM. The two stations were owned by the Griffith Broadcasting Corporation. At first, WLLL-FM simulcast WLLL. Later, it had an automatedoldies format, with its WGOL call letters standing for GOLden Oldies. In 1997, the call sign switched to WRVX.
In 2000, it changed its call sign to WZZU, airing a classic rock format. On April 19, 2021, WZZU segued from classic rock to mainstream rock, branded as "The Rock Channel".[6]