Spencer David Gibb was born on 21 September 1972 in London, England, as the first child of Robin Gibb, an English musician and member of the Bee Gees, and Molly Hullis, who worked as the personal assistant to the Beatles' manager Brian Epstein until his unexpected death in 1967.
He started writing songs on piano and keyboards when he was about 11-12 as a day pupil at Scaitcliffe (now known as Bishopsgate), in Surrey, UK.