Helen DeMacque was in the group Pepsi & Shirlie .
``  The act comprised Lawrie `` '' Pepsi '' '' DeMacque ( born 10 December 1958 , in Paddington , London ) and Shirlie Holliman ( born 18 April 1962 , in Watford , Hertfordshire ) , who had been background vocalists for the group Wham ! ''
Pepsi & Shirlie