Listen to Do They Know It's Christmas (Karaoke Version) [Originally Performed by Band Aid 20] online. Do They Know It's Christmas (Karaoke Version) [Originally Performed by Band Aid 20] is an English language song and is sung by Future Holiday Hitmakers. Do They Know It's Christmas (Karaoke Version) [Originally Performed by Band Aid 20], from the album All I Want for Christmas Is You: Karaoke Christmas Party Playlist 2013, Santa Claus Is Coming to Town, Mistletoe, Santa Baby & More!, was released in the year 2013. The duration of the song is 4:56. Download English songs online from JioSaavn.