Adele, Sam Smith, One Direction and original Band Aid star Bono have signed up for Bob Geldof's new charity single to fund the fight against Ebola.

The Live Aid founder has put together a new line-up for his Band Aid supergroup for a fresh rendition of hit song Do They Know It's Christmas?, marking the track's fourth assault on the charts.

Geldof has reunited with his longtime collaborator Midge Ure on the Band Aid 30 project, which will be recorded this weekend (15-16Nov14), 30 years after the song's initial release in 1984, and the lyrics will be changed to reflect the Ebola crisis, which has crippled countries in West Africa.

The new release, which also features Coldplay's Chris Martin, Ellie Goulding, Emeli Sande and Paloma Faith, follows previous revivals in 1989 and 2004.

Geldof, who unveiled the project at a press conference in London on Monday (10Nov14), says, "This is the worst kept secret in the world. We will reconvene nearly 30 years to the day... I don't like doing this stuff, it's quite embarrassing calling people you don't know... We called up some giants, and they said they would come again to the party. We had to re-tweak the lyrics... It is something wonderful that this country reaches out... it really doesn't matter if you hate this song or you don't like this song, you have to buy this thing."

The single's cover will feature artwork by Tracey Emin and will be released on 17 November (14). It not be available on streaming service Spotify until January (15) in a bid to encourage more sales throughout December (14), and other versions of the song will be recorded in countries such as the U.S. and France using local artists.

The original single, written by Geldof and Ure, raised millions to combat famine in Africa and featured stars including Bono, George Michael and David Bowie, who recorded an introduction to the song.

Geldof confirmed he has reached out to Bowie in a bid to convince the reclusive star to take part in the project again.

Almost 5,000 people have died of Ebola since the crisis erupted earlier this year (14).