They re-did the Band Aid Song "Do They Know It's Christmas" with new UK stars.

You can hear it here

Band Aid 20 - Who sings what

Chris Martin (Coldplay)
It's Christmas time, there's no need to be afraid. At Christmas time, we let in light and we banish shade
Dido
And in our world of plenty we can spread a smile of joy. Throw your arms around the world at Christmas time.
Robbie Williams
But say a prayer, Pray for the other ones. At Christmas time it's hard, but when you're having fun.
Sugababes
There's a world outside your window, and it's a world of dread and fear.
Fran Healy (Travis)
Where the only water flowing
Fran Healy & the Sugababes
Is the bitter sting of tears
Fran Healy & Justin Hawkins (The Darkness)
And the Christmas bells that ring there are the clanging chimes of doom
Bono (U2)
Well tonight thank God it's them instead of you
Will Young & Jamelia
And there won't be snow in Africa this Christmas time
Ms Dynamite & Beverly Knight
(Oooh) Where nothing ever grows, no rain nor rivers flow
Group of 10 & Joss Stone
Do they know it's Christmas time at all?
Tom Chaplin (Keane)
Here's to you
Justin Hawkins
Raise a glass for everyone
Dizzee Rascal
Spare a thought this yuletide for the deprived, if the table was turned would you survive
Busted
Here's to them
Justin Hawkins
Underneath that burning sun
Dizzee Rascal
You ain't gotta feel guilt just selfless, give a little help to the helpless
Joss Stone & Justin Hawkins
Do they know it's Christmas time at all?
Tom Chaplin
Feed the world
Tom Chaplin & Chris Martin
Feed the world
Tom Chaplin, Chris Martin & Sugababes
Feed the world
Everyone
Feed the world, let them know it's Christmas time again (repeated)
Fran Healy
Wooo
Group of 10
Feed the world
Everyone
Feed the world (repeated to end)
Joss Stone
Ad-libs over outro