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Most UK No.1s by a Christmas song

Most UK No.1s by a Christmas song
Who
Do They Know Its Christmas?
Where
United Kingdom
When
December 2004
Written by Bob Geldof (Ireland) and Midge Ure (UK) 'Do They Know It's Christmas?' has topped the UK singles chart at Christmas on three separate occasions in 1984, 1989 and 2004. The first version sold a then record 3.6 million copies in the UK alone, and the lastest version by Band Aid 20 was the top selling single in the UK in 2004, with over one million sold.