Listen to We're Gonna Have a Happy Christmas (Instrumental) online. We're Gonna Have a Happy Christmas (Instrumental) is an English language song and is sung by Paul Fletcher, Patrick Sturrock and Emily Taylor. We're Gonna Have a Happy Christmas (Instrumental), from the album All I Want for Christmas, was released in the year 2012. The duration of the song is 3:08. Download English songs online from JioSaavn.