A group of armed forces singers are taking aim at the charts to take top spot at Christmas.
The group, called Military Voice, draws its members from all branches of the services including Royal Marine drummers, cadets, and singers from the RAF Spitfire Choir.
They filmed a video for their song, called 1914 - A Christmas Carol, at the tomb of the unknown soldier in London's Westminster Abbey.
The song, which will be available online later this month, will raise money for various military charities.
It faces a tough challenge to make Christmas number one, with bookmaker William Hill making the new Band Aid single 8/15 on to take top spot and the X Factor winner second favourite.
The new version of Do They Know It's Christmas?, credited to Band Aid 30, has already become the fastest-selling single of the year after just a day's sales.
Figures from the Official Charts Company show it is a cert to claim the number one position at the weekend after shifting 206,000 download copies in the first 24 hours after it went on sale.