 This was because of the date of release for certain markets.The "Christmas" version (which is on the 2005 DVD "Greatest Hits") was for European countries and the "regular version" was for the other markets, where the song was released in Spring 1983.The US single was released with the B-side being an instrumental version of the song called "Romance Beyond the Alphabet", which not only removed the vocals but at least one layer of melody as well.