Is your local area involved?
We have had such a brilliant reaction from communities up and down the UK and many BBC local radio stations are confirming they're getting involved. Have a look below and see if your area is taking part. If not, maybe consider contacting your local radio station to ask if they will join us - how amazing would it be to have the whole country singing together?
Please scroll down and find your local station and cick through to their page for your area specific downloadable invitations to print off and give to friends and neighbours.
So far we are proud that the following areas have signed up to play along on the 16th December at 6pm, so all you have to do is tune in...BBC Radio Shropshire, BBC Radio Derby, BBC Radio London, BBC Radio West Midlands, BBC Radio Cambridgeshire, BBC Essex, BBC Radio Lincolnshire, BBC Radio Northampton, BBC Radio Suffolk, BBC Radio Surrey, BBC Radio Sussex, BBC Radio Stoke, BBC Radio Hereford & Worcester, BBC Coventry & Warwickshire, Red Kite Radio, Andover Radio, Radio Leyland, 103 The Eye, Hermitage FM