Hoadley's Battle of the Sounds was an annual national rock/pop band competition held in Australia from 1966 to 1972. The winners of the national finals were the Twilights (1966), the Groop (1967), the Groove (1968), Doug Parkinson in Focus (main, 1969) and the Affair (vocal group, 1969), the Flying Circus (1970), Fraternity (1971) and Sherbet (1972).