During the Christmas season of 1978, Boney M. returned the song to the top of the British charts with the melody "Mary's Boy Child/Oh My Lord." According to Boney M. member Marcia Barrett in the book 1000 UK #1 Hits
by Jon Kutner and Spencer Leigh, "I always thought of Boney M. as being put together by a spiritual force and we liked doing spiritual songs. When we did Mary's Boy Child, we added a bit spontaneously at the end. As it worked, we left it in." Hence the record was listed as a medley of "Mary's Boy Child" and "Oh My Lord."