KIIS 101.1 is a top 40 station in Melbourne and is owned by Australian Radio Network. The station started its life as 3DB and was Melbourne's second commercial station launching in 1930.
The station's callsign of 3DB was derived from its original owner, Druleigh Business College. Between 1929 and 1987, 3DB was owned and operated by The Herald and Weekly Times, owners of The Herald and The Sun News-Pictorial newspapers.
The station has had a variety of formats including top 40 - its current format - between 1975 and 1981. This was followed by classic hits until 1993. In 1983, it become Melbourne's sole racing station.
1988 was a changing time for the station. The Victorian Racing industry purchased 3UZ and took back racing. HWT sold the station to the Albert Family and continued with a full-time classic hits format; relaunching with a new callsign 3TT (3 Ten Twentysix). In 1990, along with sister station Gold 104.3, 3TT converted to FM.
TTFM relaunched in 1993 as adult contemporary and renamed as Mix 101.1 in 2001; matching the other Australian Radio Network stations in the MixFM Network.In 2015, the station returned to its top 40 format and relaunched as KIIS 101.1; with the network renamed as the KIIS Network.