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

Boney M. is a German reggae, funk and disco music group founded in 1974, who achieved popularity during the disco era of the second half of the 1970s. The band was created by German record producer Frank Farian, who was the group's primary songwriter and singer. 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 has sold millions of records worldwide and is known for international 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".