The Guardian reports that this year's race for the top spot is between Justin Bieber and the Lewisham and Greenwich NHS Choir, with the Canadian only 3,000 sales ahead of our team, who have reheated their mashup of Fix You and Bridge Over Troubled Water - the hippest Christmas collision since Cliff Richard married the lyrics of the Lord's Prayer to the tune of Auld Lang Syne.
All proceeds from the NHS song will be shared between Carers UK and Mind (including Mind's sister charities in Scotland and Northern Ireland), and a smaller percentage will also be distributed amongst smaller charities in the New Year - plus of course, a number one would be a reminder that the NHS is A GOOD THING that everyone likes.
Download it here and see off the threat from 2009's answer to Justin Trudeau. Thank you to Michael for pointing this out.
UPDATE: The Choir has claimed top spot, securing the 2015 number one spot with a total of 127,000 sales, compared with Justin Bieber's 96,000. Earlier this week, the Canadian graciously urged his fans to buy the Lewisham & Greenwich team's single.