About Mary's Boy Child / Oh My Lord

"Mary's Boy Child / Oh My Lord" [nb 1] is a 1978 Christmas single by Boney M., a cover of Harry Belafonte's 1956 hit, put in medley with the new song "Oh My Lord" (Farian/Jay). The single was recorded in a hurry in early November, included in the group's live set and rushed out at the end of the month, topping the UK Singles Chart for four weeks and became Christmas number one, spending eight weeks in the charts. It was the second single for the group in the UK's all-time best selling singles list. The song was later included in the group's Christmas Album, 1981.

In the United States, the track reached number 85 in the Billboard Hot 100, Boney M's last of four singles to chart; despite its chart position, the medley is an airplay favorite in the United States during the Thanksgiving/Christmas holiday season on radio stations which change to temporary all-Christmas music formats. It reached number one on the UK Singles Chart and has sold 1.89 million as of November 2015.