Talk about a 'bro-mance'.  Bieber and Usher have teamed up again for their version of 'Chestnuts'.

Remember how amazing they sounded when covering Queen's 'Somebody to Love'?

This song gets everyone in the mood for setting up the Christmas tree even if haven't contracted 'Bieber Fever'.

You can say whatever about him but there is no denying the boy can belt it out.