Question: who sang circle of life in lion king
[{'answer': 'Carmen Twillie', 'provenance': [{'wikipedia_id': '18892284', 'title': 'Circle of Life', 'start_paragraph_id': 1, 'start_character': 152, 'end_paragraph_id': 1, 'end_character': 166, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Lebo M.', 'provenance': [{'wikipedia_id': '18892284', 'title': 'Circle of Life', 'start_paragraph_id': 1, 'start_character': 201, 'end_paragraph_id': 1, 'end_character': 208, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '18892284', 'title': 'Circle of Life', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 678, 'bleu_score': 0.7646928696805081, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 17727455713596132713}, 'section': 'Section::::Abstract.'}]}]