Question: who was the first voice on do they know its christmas
[{'answer': 'Tony Hadley of Spandau Ballet', 'provenance': [{'wikipedia_id': '848102', 'title': "Do They Know It's Christmas?", 'start_paragraph_id': 16, 'start_character': 344, 'end_paragraph_id': 16, 'end_character': 373, 'bleu_score': 1.0, 'section': 'Section::::Recording.\n'}]}, {'provenance': [{'wikipedia_id': '848102', 'title': "Do They Know It's Christmas?", 'start_paragraph_id': 16, 'start_character': 0, 'end_paragraph_id': 16, 'end_character': 1290, 'bleu_score': 0.980182336003475, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 8305821595752946884}, 'section': 'Section::::Recording.\n'}]}]