A new version of the Band Aid charity single has been recorded by stars including One Direction, Emeli Sande, Rita Ora and Ed Sheeran in a studio in London.
Ellie Goulding, Sam Smith, Chris Martin and Bono also sang on the reworked Do They Know It’s Christmas?.
The recording, which comes 30 years after the original Band Aid, will raise money for the fight against Ebola.
The UK government has agreed to waive VAT on the single.
Organizer Bob Geldof, who also masterminded the original in 1984, said he addressed the participants “like the headmaster” before they sang the chorus.
The song’s first lines have been recorded by One Direction. It will get its first play on ITV’s X Factor results show on November 16.
Other artists taking part included Elbow, Seal, Jessie Ware, Fuse ODG, Sinead O’Connor, Angelique Kidjo, Olly Murs, Paloma Faith, Queen drummer Roger Taylor, Clean Bandit and Foals.
Rita Ora was the first to record her lines and left early.
Ed Sheeran flew in from his tour in Germany, while Bastille cancelled two US arena gigs to be involved. Disclosure and Underworld were also in the studio to do remixes.
Saturday’s recording session took place at the Sarm studios in west London, the venue where stars such as Wham!, Duran Duran, Sting and Status Quo recorded the original.
That single raised £8 million ($13 million) for famine relief in 1984. This time, the lyrics have been rewritten.
Instead of the line “Where the only water flowing is the bitter sting of tears”, the new version has the line “Where a kiss of love can kill you and there’s death in every tear”.
Bono’s famous line “Well tonight thank God it’s them instead of you” has been changed to “Well tonight we’re reaching out and touching you”.
The music video will be edited in “record time” so it can be shown on The X Factor at 20:00 GMT on November 16.
The song will be made available to download at 08:00 GMT on November 17, priced 99p ($1.5). A CD version costing £4 ($6) will be released three weeks later with a cover designed by artist Tracey Emin.
The track will not be made available on Spotify and other music streaming services until January.
Bob Geldof told fans: “Come Monday at 08:00 when every station plays this track across the nation, buy this thing. Don’t go looking for it free. Buy it.”
The original version sold 3.7 million copies. Five years later, another version was produced by Stock, Aitken and Waterman, largely featuring their artists such as Kylie Minogue, Jason Donovan and Sonia.
In 2004, Band Aid 20 was recorded by the likes of Coldplay, Dizzee Rascal, Ms Dynamite, Will Young and Robbie Williams.
Family and friends have paid their last respects to Peaches Geldof, at her funeral in Kent.
Mourners included Sarah Ferguson, Nick Grimshaw, Bill Wyman and Kate Moss.
Peaches Geldof’s father, Sir Bob Geldof, was due to give a eulogy during the service, in the church where she was married two years ago.
It is also where the funeral was held for her mother Paula Yates in 2000.
Peaches Geldof, 25, died suddenly two weeks ago at her home.
Flowers were laid outside the St Mary Magdalene and St Lawrence Church in Davington, near Faversham, on Monday morning.
Located next to Bob Geldof’s Davington Priory country estate, where Peaches grew up, the streets were lined with well-wishers and photographers ahead of the service.
A hearse carrying her sky blue coffin drew into the estate shortly before 13:00 BST. It was adorned with a painted picture of Peaches Geldof, her husband Thomas Cohen, their two young sons and pet dogs.
Peaches Geldof’s blue coffin was adorned with a painted picture of herself, her husband, their two young sons and pet dogs
The funeral, at which Peaches Geldof’s younger sister Pixie had also been expected to speak, was private.
Peaches Geldof’s ashes are expected to be scattered in the estate’s garden.
Her body was found on April 7 at the home she shared with her husband, musician Thomas Cohen and their sons, Astala, 23 months, and 11-month-old Phaedra, in Wrotham, Kent.
Peaches Geldof’s cause of death is not yet known as a post-mortem test was inconclusive.
The results of toxicology tests are expected in the coming weeks, after which an inquest is expected to be opened.
Police have said the death is being treated as a “non-suspicious, unexplained sudden death”.
Bob Geldof, the former frontman of The Boomtown Rats, previously described his daughter as the “wildest, funniest, cleverest, wittiest and the most bonkers of all of us”.
St Mary Magdalene and St Lawrence Church is also where Bob Geldof and television presenter Paula Yates married in 1986.
Peaches Geldof autopsy has proved inconclusive, and toxicology tests will be conducted in an attempt to determine cause of death, police say.
Peaches Geldof, 25, daughter of musician and campaigner Bob Geldof, was found dead at her home in Kent on Monday.
Police said at the time that her death was being treated as “non-suspicious but unexplained and sudden”.
The toxicology tests could take “several weeks” to come through, police said on Wednesday.
“Officers continue to investigate the circumstances surrounding the death in order to compile a report for the coroner,” they added in a statement.
Kent County Council has said it will make “a decision on whether there needs to be an inquest” based on the final results of the autopsy.
Peaches Geldof autopsy has proved inconclusive, and toxicology tests will be conducted in an attempt to determine cause of death
Officers had been called to the home Peaches Geldof shared with her husband, singer Thomas Cohen, and their two young children following “a report of concern for the welfare of a woman”. Peaches Geldof was pronounced dead at the scene.
The news of her death was met by shock and grief from friends and family.
Peaches Geldof was 11 when her own mother died.
TV presenter Paula Yates died of a drug overdose in September 2000. In September 2012 Peaches Geldof said she had not been able to come to terms with her mother’s death for several years.
Her final tweet on Sunday was a picture of her as a child in her mother’s arms, with the message: “Me and my mum.”
Peaches Geldof’s last column for Mother and Baby magazine was published posthumously on Tuesday.
Peaches Geldof post-mortem examination will take place on Wednesday, Kent County Council have confirmed.
Peaches Geldof , 25, was found dead at her Kent home, on Monday.
In a statement, the council said: “A decision on whether there needs to be an inquest depends upon the final results of the post mortem.”
The council added that it “could take some weeks” for those results.
Peaches Geldof was the second daughter of musician and campaigner Bob Geldof and Paula Yates.
Kent Police said earlier that her death was being treated as “non-suspicious but unexplained and sudden”.
Peaches Geldof was found dead at her Kent home at the age of 25 (photo Getty Images)
Fifi Trixibelle Geldof paid tribute to her sister Peaches earlier on Tuesday and posted on Instagram: “My beautiful baby sister…. Gone but never forgotten. I love you Peaches x.”
Irish President Michael D. Higgins also paid tribute to the writer, TV presenter and model.
Susan Sarandon, Boy George, politician Martin McGuinness and TV presenter Davina McCall have also offered condolences.
Peaches Geldof’s father Bob said his family are “beyond pain” following the news.
President Michael D. Higgins, who was due to meet Bob Geldof this week during a state visit to Britain, said his thoughts were with the family.
Peaches Geldof had two young sons with her second husband, musician Tom Cohen. She was 11 when her own mother died.
In a family statement issued on Monday night, Bob Geldof said: “She was the wildest, funniest, cleverest, wittiest and the most bonkers of all of us.
“Writing <<was>> destroys me afresh. What a beautiful child. How is this possible that we will not see her again? How is that bearable?
“We loved her and will cherish her forever. How sad that sentence is. Tom and her sons Astala and Phaedra will always belong in our family, fractured so often, but never broken.”
The statement was signed Bob, Jeanne, Fifi, Pixie and Tiger Geldof.
Tom Cohen said: “My beloved wife Peaches was adored by myself and her two sons Astala and Phaedra and I shall bring them up with their mother in their hearts every day. We shall love her forever.”
Bob Geldof was knighted in 1986 for his work in organizing Live Aid and other concerts that raised millions for the starving people of Africa. He first gained prominence as the lead singer of the Irish rock band the Boomtown Rats in the 1970s.
Paula Yates, who was famous for presenting Channel 4’s The Big Breakfast and music show The Tube, died of a heroin overdose in September 2000.