<P> Ure played the backing track and guide vocals to the artists and then decided , as a way of getting all involved straightaway , to record the climax first . The artists were put in a huge group and sang the ' Feed the world , let them know it 's Christmas time ' refrain over and over again until it was complete . Having recorded the group , Ure chose Tony Hadley of Spandau Ballet to be the first singer into the studio to record his solo part . Hadley admitted that this had been nerve - wracking , knowing that all his contemporaries were watching him . One by one the other assigned singers then did likewise , with Ure taping their efforts and then making notes on which segments would be cut into the final recording . Le Bon , despite having already recorded his part at Ure 's house , re-recorded it so he could be part of the moment . Sting also recorded his words again , this time to provide harmony vocals . Despite being lead singers themselves , both Geldof and Ure had already decided that they would not sing any solo lines , although both took part in the ' feed the world ' finale . Ure later stated in his autobiography that he was constantly battling with Geldof , and telling him to leave when he would come into the production booth and wrongly tell the artist behind the microphone what to sing . </P>
who was the first voice on do they know its christmas
Tony Hadley of Spandau Ballet