In 1978, with Queensland University friend Grant McLennan, he co-founded the acclaimed pop/rock band The Go-Betweens. The group, based in London for five and a half years, recorded six albums, toured extensively, before breaking up in late 1989.
In the 1990’s, while living in Brisbane and Regensburg, Germany, Forster recorded and toured three solo albums of original material: Danger In The Past (’90); Calling From A Country Phone (’93) and Warm Nights (’96). He also released an album of his favourite songs by other artists called I Had a New York Girlfriend (’94).
In 2000, reunited with Grant McLennan, The Go-Betweens recorded their seventh album, and would record two more albums, one of which, ‘Oceans Apart’, was awarded the ARIA (Australian Recording Industry Association) Best Adult Contemporary Album of 2005.