This is what we found on Wikipedia regarding the Boney M:

Boney M. is a reggae, funk and disco music group founded in 1974 in West Germany. It achieved popularity during the disco era in the second half of the 1970s. The band was created by German record producer Frank Farian, who was the group's primary songwriter and one of its main vocalists. Originally based in West Germany, the four original members of the band's official line-up were Liz Mitchell and Marcia Barrett from Jamaica, Maizie Williams from Montserrat, and Bobby Farrell from Aruba. Since the 1980s, various line-ups of the band have performed with different members.

The band sold over 100 million records during their commercial heyday, and are known for hits including "Daddy Cool", "Ma Baker", "Belfast", "Sunny", "Rasputin", "Rivers of Babylon", "Brown Girl in the Ring", "Hooray! Hooray! It's a Holi-Holiday", "Mary's Boy Child / Oh My Lord" and "Gotta Go Home". They achieved eight number one singles in their native Germany, and two in the United Kingdom, both of which are among that country's all-time bestsellers.