Mouth & MacNeal was a Dutch pop duo that gained international prominence in the early 1970s. Comprised of Willem "Mouth" Duyn and Maggie MacNeal (born Sjoukje van't Spijker), the duo was known for their blend of pop, folk, and schlager music, featuring catchy melodies and harmonious vocals. Their most influential work is arguably the hit "How Do You Do," which reached the top of the charts in many countries in 1972. Despite their relatively short-lived collaboration, Mouth & MacNeal left a significant mark on the European pop scene of their era.