MacNeal had released one solo single – a cover, produced by Hans van Hemert, of "I Heard It Through the Grapevine", written by Norman Whitfield and Barrett Strong and made famous by singer Marvin Gaye – before teaming up with Willem Duyn (Mouth), to form the duo known as Mouth &amp; MacNeal, recording Pop international hits such as "How Do You Do" (1971) and "Hello-A" (1972). She was with Mouth &amp; MacNeal from 1971 to 1974 including a participation in the 1974 Eurovision Song Contest with the song "I See a Star".