A Christmas Carol written by a former BBC Radio Scotland producer has been sung by an estimated 450-plus choirs around the world, some 30 years after it was penned.

Dougie Campbell was 13 years-old when he wrote It's Christmas Day, which was then performed by pupils at Balfron Primary School and released as a single to family and friends.

However, after putting up an illustrated version of the song on YouTube two years ago, Campbell - who was also a DJ on Radio Scotland and has worked on other Scots radio stations - has been inundated with requests from choirs to perform it.

He does not charge for it to be performed. The biggest demand has been from choirs in the USA.

Visit www.itschristmasday.com