Get a load of the other big names on the song besides 1D, Ed and Adele: Bono, Sam Smith, Ellie Goulding, Chris Martin, Foals, Bastille, Olly Murs, Sinead O'Connor, Jessie Ware, Paloma Faith, Emeli Sandé, and Underworld.
This is shaping up to be a huge hit and a new and updated Christmas classic. Look for "Do They Know It's Christmas" to be released on November 17. Proceeds from the single will help assist in the fight against Ebola.
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Gallery | One Direction On the Road Again Tour 2015