Wham! Last Christmas (1984)
The battle for the prestigious Christmas top spot in 1984 was fought between Wham!, Frankie Goes to Hollywood (with The Power of Love) and Band Aid's Do They Know it's Christmas, with the latter winning out. Frankie made #1 the week before the official Christmas chart was out, with Wham having to settle with #2.
However, Last Christmas was the biggest-selling single in chart history not to have made #1, selling well over 1 million copies. A re-issue in 1985 reached #6 in the UK singles charts, and the song has re-entered many singles charts many times, particularly in Germany where it has spent 88 weeks in the singles charts, and has entered the charts every year since 1997. The original 1984 release of the single was a Double-A side featuring the track Everything She Wants.
Personally, I find the video a bit cheesey and it looks rather dated these days, but I've always enjoyed the song and it's definitely one of the most memorable Christmas tunes.
Last Christmas Vinyl Sleeve