89 FM A Radio Rock is a Brazilian radio station, granted in Osasco and headquartered in the city of São Paulo, which operates on FM radio on the frequency 89.1 MHz for listeners in the Metropolitan Region of São Paulo. The station is originally a concession in the municipality of Osasco and is based at Avenida Paulista. 89 FM A Radio Rock is a radio controlled by Grupo Camargo de Comunicação. 89 FM A Radio Rock started its activities in 1985, as a program focused on rock. In mid-2006, it changed its programming to pop, but returned to being a radio specialized in rock at the end of 2012.