Simon Holmes was born on 28 March 1963 at Mordialloc Hospital to Neville and Eve Holmes. He grew up with an elder sister, Kerith, and a younger brother, Rowan. The family lived in Bentleigh, before shifting to Turramurra in 1967, before going overseas for three years, in upstate New York, where Holmes started school at Myers Corner. The family then moved to Geneva, Switzerland. He spent part of his childhood in Canberra, attending the AME School: an alternative education institution and then Hawker College. Holmes moved to Sydney in the early 1980s. He started studying anthropology and archaeology at the University of Sydney, but left after two years. In 1981 Holmes, on guitar and vocals, replaced founding member Greg Suptut in Sydney-based punk rockers, the Exserts, until May 1983. His musical influences include punk rock, psychedelia and new wave. During the mid-1980s Holmes was a member of Bug Eyed Monsters, alongside John Boyce on bass guitar and Mark Temple on drums. In 1986 the trio formed the Hummingbirds, as a pop group. Holmes described their name, "I don't particularly like but it stuck. We were in a hurry when we recorded our first single and it was innocuous enough for all of us. But it's an appropriate name — it's light and inoffensive and relatively memorable." Soon after they were joined by Alannah Russack on guitar. Early in 1987 Robyn St Clare replaced Boyce on bass guitar and vocals. The Hummingbird's debut single, "Alimony", was written by Holmes. As of August 1989 Holmes was working in a record store, Phantom Records, while St Clare worked in a book shop and a coffee shop. Holmes and St Clare became domestic partners and, in 1991, they had a child. The group's debut album, loveBUZZ via rooArt, peaked at No. 31 on the ARIA Albums Chart. The Canberra Times Kathryn Whitfield observed "he likes his music loud enough to rattle his bones and vibrate his internal organs, and judging by the somewhat speedy success of the band's debut album, loveBUZZ, there are a lot of other folk who enjoy the same experience." Most of its 14 tracks were written by Holmes, although its lead single, "Blush", was co-written with St Clare. It became their highest charting single when it reached No. 19. The group issued a second album, Va Va Voom, and disbanded in December 1993. During 1992, while still with the Hummingbirds he issued a single, "Strung Out", under the name, Revhead. In the 1990s Holmes helped run an alternative culture bookshop, Half A Cow, in Glebe and he also worked as a music retailer. As a record producer he worked on Custard's second album, Wahooti Fandango, the Fauves' second album, The Young Need Discipline and Things of Stone and Wood's fourth album, Whirligig. Holmes released an album, Airbrushed Perfection and two mini-albums with his band Fragile, between 1995 and 2000. By October 2004 he was a member of Her Name in Lights, which issued their debut album, Into the Light Again, on Laughing Outlaw Records. Holmes provided bass guitar, lead guitar, and pump organ; and also produced the album. Holmes died in Sydney in July 2017, at the age of 54. Cause of death was not publicly announced.