Bono, Roger Taylor of Queen, Chris Martin of Coldplay, Seal and many other stars — including current pop icons Sam Smith, Ed Sheeran and Niall Horan of One Direction — gathered in London Saturday to record a new version of the Band Aid charity song, “Do They Know It’s Christmas.” With lyrics altered for the times, the record will raise money to combat Ebola in west Africa, which has killed more than 5,000 people.

The session took place at a West London studio under the direction of Bob Geldof and Midge Ure Just before the session started, Geldof addressed everyone, saying, “When you sing this, be aware that the rest of the world will be singing it with you.”

Speaking to reporters as he entered the same studio where the original song was recorded on November 25th, 1984 to fight famine in Ethiopia, Bono said, “We’ve been trying to make this event a thing of the past. We want to make Band Aid history. If every country had the values of Great Britain and kept the promises they’d made at these big G8 meetings, we wouldn’t have to be standing here. I just wish we didn’t have to do this. There will come a time when we won’t. And it will be great not to see the same old faces.”

The original version raised $11 million. The song was re-recorded twice before, in 1989 and 2004.

The new track will be premiered on a British TV show tonight (Sunday) and available for download in the UK tomorrow (Monday). iTunes has it listed for pre-order ($1.29), with Tuesday shown as the available date. A CD will be out in three weeks.