Name the band

Explanation

"Last Christmas" is a song by British pop duo Wham! written by George Michael one half of the duo. Released in 1984 it was going up against the charity song "Do They Know It’s Christmas?". Last Christmas became the biggest selling single in the UK never to reach the top of the charts! Being no. 2 is not that bad and since George Michael was heavily involved in Band Aid himself, he donated all of the song’s royalties to the Ethiopian famine appeal.