Gang Gajang (styled as GANGgajang) are an Australian pop rock band which formed in 1984. Three of the founders are frontman Mark ’Cal’ Callaghan (ex-Riptides) on guitar and lead vocals, Chris Bailey on bass guitar and Graham ’Buzz’ Bidstrup on drums (both ex-The Angels). They were soon joined by Geoffrey Stapleton on keyboards, guitar and vocals. Their most popular song, "Sounds of Then", a.k.a. "This Is Australia", was issued in December 1985 and peaked in the top 40 on the Australian Kent Music Report Singles Chart. It became familiar to Australians ten years later when it was used on TV in a Coca-Cola ad and then for the 1996 Nine Network station ID promotion. Their highest selling album was Gang Gajang (styled as GANGgajang), which was released in November 1985. They have issued three other studio albums, Gang Again (as gangAGAIN) (1987), Lingo (1994) and Oceans and Deserts (2002). On 4 April 2013 Chris Bailey died of throat cancer, aged 62.