Listen to Do They Know It's Christmas online. Do They Know It's Christmas is an English language song and is sung by Erika Scherlin. Do They Know It's Christmas, from the album Les plus belles chansons de Noël (Une ambiance festive dans un parfait style lounge), was released in the year 2014. The duration of the song is 3:22. Download English songs online from JioSaavn.