The station launched in August 1980 as 4MMM. It was broadcast on the FM band at 104.1 MHz. It was the first commercial FM station in Brisbane. Their first format was contemporary rock. In December 1982, after it became obvious that there was a market for a much younger demographic they were re branded as FM104 with the tag line “Rock In Stereo”. They added AC/DC, The Angels and Talking Heads. Bands of the likes of Cold Chisel, Icehouse and Midnight Oil were to become a staple on FM104 with the burgeoning Australian Pub rock scene gaining popularity.
From 1984 onwards FM104 dominated the market, peaking at an unheard of 37.9 share in 1988.
In 1988 FM104 became FM104 Triple M, joining the newly created Triple M nation wide network with Sydney, Melbourne, Adelaide and Perth. In November 1989 a change of frequency to 104.5 MHz occurred.
In 1995 the Austereo group purchased the station and they became known as FM104.5 MMM. In August 2005 they celebrated 25 years of FM rock.
The first song to air on 4MMM was “Cool Change” by Little River Band.
In 2016 Triple M is celebrating 36 years of rocking the river city.