An "ultimate mix" of "Do They Know It's Christmas" is set for release later this month to celebrate 40 years since the festive charity hit's recording. Rockers Bob Geldof, Midge Ure and producer Trevor Horn said the latest version will feature vocals from Sting,

To mark the 40th anniversary, a new documentary, The Making Of Do They Know It's Christmas?, unearths 75 minutes of original footage, showing how the song was recorded over the course of one day at a studio in London.

A remix will blend the voices from all the different versions released over the years into one whole.

Band Aid is back! To celebrate 40 years since 'the song that changed the world,' Sir Bob Geldof, Midge Ure and Trevor Horn announce Band Aid 40, which will bring together three decades of Do They Know It's Christmas?

The new version of Band Aid's Do They Know It's Christmas? will feature original voices from the 1984 recording, alongside some of the younger artists who appeared in later versions - and a young Bono singing alongside his older self.

A new version of Band Aid's "Do They Know It's Christmas?" has been announced to celebrate the song's 40th anniversary. The charity single, first released in 1984, has become a festive staple over the years and the Band Aid Charitable Trust has raised over £140 million ($178 million) for causes such as poverty in Africa.

A new "ultimate mix" of Band Aid's Do They Know It's Christmas? is being released to celebrate the charity single's 40th anniversary. Producer Trevor Horn has created a mix which combines the star-studded vocals from three previous versions of the song,