British boyband Busted are delighted to be performing on the new Band Aid single, because they'll be playing with so many of their musical idols.
The Crashed The Wedding trio - Matt Jay, James Bounre and Charlie Simpson - will join stars including Bono, Chris Martin, Robbie Williams and Diso when they record the charity track on Sunday.
Jay says: "Me and James were babies when the first record was done in 1984 and Charlie wasn't even born.
"But we all know the importance of Band Aid, what it can do to help people.
"We're delighted to be a part of Band Aid III."
The updated version of Do They Know It's Christmas? - which originally raised money for the Ethiopia famine in 1984 - will be released with the aim of topping the UK singles chart over the festive period next month.