A new version of "Do They Know It's Christmas", recorded to raise money to help fight the Ebola crisis, was debuted on X Factor last night.
Here's the official video.
View this video on YouTube
Some of the lyrics have changed, with "Well tonight we're reaching out, and touching you" replacing "Well, tonight thank God it's them instead of you."
Here's the official artwork by Tracey Emin.
And here's a full rundown of which artists sing what on the track.
"It's Christmas time. There's no need to be afraid."
"At Christmas time, we let in light, and we banish shade."
"And in our world of plenty, we can spread a smile of joy."
"Throw your arms around the world, at Christmas time."
"But say a prayer, pray for the other one."
"At Christmas time, it's hard but while you're having fun."
"There's a world outside your window, and it's a world of dread and fear."
"Where a kiss of love can kill you."
"And there's death in every tear."
"And the Christmas bells that ring there, are the clanging chimes of doom."
"Well tonight we're reaching out, and touching you."
"Bring peace and joy this Christmas to West Africa."
"A song of hope when there's no hope tonight."
"Why is comfort is to fear? Why is to touch to be scared?"
"How can they know it's Christmas time at all?"
"Here's to you..."
"Raise a glass to everyone."
"Here's to them..."
"And all their years to come."
"Let them know it's Christmas after all."
These YouTubers also make brief appearances.
Update — Nov. 18, 1:07 p.m. GMT: Bob Geldof said "bollocks" on Sky News when he was asked whether he thought Band Aid 30 was patronising and perpetuated myths about Africa.
He also said "bollocks" to criticism that such fundraising efforts would not be needed if all of the artists taking part in Band Aid 30 paid their taxes in the right way.