The TEN best selling singles of the year, 2015, counting down from no.10 to no. 1
Just tell us who the 9 (yes, someone appears twice!) different performers are
Enjoy the sounds of Justin Bieber, James Bay, Major Lazer ft Mo & DJ Snake, Adele, Wiz Khalifa ft Charlie Puth, Ellie Goulding, Hozier, Omi, Mark Ron ft Bruno Mars
