Hannah was born on 1 April 1981 at Great Yarmouth, England. At the age of 3 she modelled in a Mothercare catalogue. At school Hannah liked sports but at 12 she decided she wanted to be a performer.
Hannah landed a part in a local production of Annie. She enjoyed it so much she decided to join the National Youth Music Theatre production of Pendragon where Hannah met S Club 7 member Paul.
She also appeared in English TV shows such as Blue Peter & the National Lottery. Then at age 18 Hannah joined the pop group S Club 7.