Chart toppers Emile Sande and Rita Ora also turned up to the star-studded studio session, ready to contribute vocals to the single.

The 30th anniversary record will help raise money for the millions of people affected by the devastating Ebola outbreak in West Africa.

Scottish singer Emile said following her session: "Bob (Geldof) 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," she said.

BOB GELDOF SPEAKS ABOUT DAUGHTER PEACHES' DEATH

She added: "It was him expressing how passionate he was about this cause and how it's so unnecessary that so many people should be dying."

Rita Ora also tweeted: "Band aid 30. Support the cause. Thank you sir bob! It's out tomorrow everybody do your part! Now off to the voice! #TeamRITA #chopper."

The One Direction boys were lucky to make it in time- band member Liam Payne revealed that he nearly missed out on his recording session after sleeping in!

He tweeted to fans: "That moment when ur fast asleep at the time your supposed to be leaving and you literally put your clothes on faster than Bruce almighty (sic)."

AMY CHILDS THINKS EBOLA IS A BAND

Charity organiser Bob Geldof held press conference earlier this week unveiling his plans for what bookies are already betting will be no.1.

A spokesman for betting company William Hill said: "Band Aid 30 is certain to be number one next week but it has a long time to hang on to be the Christmas number one. As a result the X Factor winner is still very much a contender."

WATCH: DAVID BECKHAM'S EBOLA VIRUS APPEAL

The money raised could not come fast enough. Thousand of children have been orphaned and families ripped apart by the current Ebola outbreak.

Hospitals are at capacity and sick people (at their most contagious) are being turned away from Ebola centres.

Lack of resources mean that the virus will continue to spread as family members and medical staff lack the means to protect themselves from the disease.

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