Her career as a singer began as a teenager when she joined a backing group The Desperadoes.
They appeared on the same bill as acts such as The Rolling Stones, The Who, Freddy and the Dreamers and The Animals.
She later had a four-year stint as a singer with The Caravelles, who successfully toured in the UK and across Europe.
In 1971, Hamilton moved to Australia where she variously owned and operated a car hire company, lingerie business and restaurants.
In 1979 Hamilton was invited to sing "On the Inside", written by Allan Caswell as the theme tune for Australian soap opera, Prisoner.