Guys 'n Dolls
Vocal group formed in 1974. In 1977, Thereza Bazar and David Van Day left the band, but continued as [a=Dollar].
When Guys 'n' Dolls finished as a unit in December 1985, Dominic Grant and Julie Forsyth performed as the duo [a=Grant & Forsyth] since.
A version of Guys 'n' Dolls exist to this day. They reformed in the 1990s with one of the original members.