So which stars are actually involved in Band Aid 30 – from One Direction to YouTube star Zoella

To celebrate the 30th anniversary of the original Band Aid single Do They Know It’s Christmas, Sir Bob Geldof has got some of our favourite celebs together to record a very special version of the song (Band Aid 30) to raise money to help combat the spread of Ebola in West Africa, which has claimed thousands of lives and left thousands of children orphaned.

We've now seen the video, but there are soooooooo many celebs involved, we can't keep up with who's actually involved. So here's a handy run-down of everyone so we know what's going on.