The Band Aid 30 charity single "Do They Know It's Christmas" is the year's fastest-selling single in the UK and is raising funds for the fight against Ebola in West Africa -- but not everyone is singing its praises.

One Direction, Ed Sheeran and Coldplay's Chris Martin are among the artists featured on the new single "Do They Know It's Christmas?" -- an effort to raise funds for the fight against Ebola in Western Africa.

Stars including One Direction, Ed Sheeran, and Coldplay's Chris Martin have signed up to re-record charity single "Do They Know It's Christmas," with proceeds going to the battle against Ebola.