Band Aid 30 singers arrive at studio

One Direction, Rita Ora, Ed Sheeran, Sam Smith, Ellie Goulding and Olly Murs are just some of the stars joining forces today to record a charity song.

The stars have been arriving at a recording studio in London to record a classic song that was first released 30 years ago.

Do They Know It's Christmas will be released on Monday with the aim of raising millions of pounds to help tackle the Ebola crisis in west Africa.

A preview of the song will be shown on the X Factor results show on Sunday.