[1] Hush were formed in Sydney in 1971 as a five piece light pop group by Robin Jackson on guitar, John Koutts on drums, Keith Lamb on lead vocals, Rick Lum on bass guitar and Chris Nolan on keyboards.
[3][4][5] Gock was in a group, Chariot,[3] and saw Hush performing "I wanted to check our competition... [they] were very professional, but not ballsey enough.
"[2] In April of the following year Gock joined Hush on lead guitar together with Chris "Smiley" Pailthorpe on drums to form a four-piece glam rock line-up with Lamb and Lum.
[6] He sold Song Zu in 2001 and started a new business, Les Gock Sound Thinking, which specialised in audio branding.
[citation needed] Gock has two adult sons, Adam and Chad with his wife of 49 years, Mulan (a.k.a.