Stars of the music industry came together on Nov. 15 to record a cover of “Do They Know It’s Christmas?” in a London studio. The recording, coming 30 years after the first Band Aid, will raise money to fight Ebola.

The original song was written in 1984 by Bob Geldof and Midge Ure. It was a charity record, raising money for anti-poverty efforts in Ethiopia. 30 years later, Geldof and Ure organized the new group, calling them “Band Aid 30.” Participants included: One Direction, Ed Sheeran, Rita Ora, Sam Smith, Paloma Faith, Emeli Sandé, Guy Garvey, Bastille, Angélique Kidjo, Chris Martin, Bono, Seal, Ellie Goulding, Sinéad O’Connor, and Olly Murs. Additionally, YouTube stars such as Zoella, Alfie Deyes, and Joe Sugg made brief appearances.

Geldof has rewritten the original song to reflect the Ebola outbreak. “Where nothing ever grows, No rain nor rivers flow” is now “Where to comfort is to fear. Where to touch is to be scared.” Bono’s line, “Tonight thank God it’s them instead of you,” had been changed to “Well tonight we’re reaching out and touching you.”

Sandé stated, “Bob gave a really touching speech before we started singing so I think that really got everybody in the mind frame that we needed to be in to remind us it’s fun, but we’re here for a really serious reason. It was him expressing how passionate he was about this cause and how it’s so unnecessary that so many people should be dying.”

According to BBC, Geldof explained to everyone, “OK, this is what it’s about. When you sing this, be aware that the rest of the world will be singing it with you.”

One Direction sang the opening line of the song. Liam Payne of the famous group talked to his bandmates afterwards in a YouTube video posted by Band Aid 30. “So boys, we’ve just done our first bit for the song, and I thought it was amazing. And Sir Bob’s speech as well was pretty epic. What did you think?” Louis Tomlinson responded, “Yeah he was very very empowering with his words. I think we are all just so honored to be involved in such an incredible cause… It speaks for itself… We are so so lucky to be in this position.”

Geldof recommends that you shouldn’t listen to the song for free, but instead purchase it. “Buy this thing. Don’t get it free, buy five, buy ten.” The UK Government even agreed to waive VAT on the single. In other words, they are waiving tax on the song.

The song became available for purchase on iTunes on Monday, Nov. 17.