Question: who sang blue moon in american werewolf in london
[{'answer': 'Sam Cooke', 'provenance': [{'wikipedia_id': '471370', 'title': 'An American Werewolf in London', 'start_paragraph_id': 46, 'start_character': 414, 'end_paragraph_id': 46, 'end_character': 423, 'bleu_score': 1.0, 'section': 'Section::::Production.:Music.\n'}]}, {'answer': 'the Marcels', 'provenance': [{'wikipedia_id': '471370', 'title': 'An American Werewolf in London', 'start_paragraph_id': 46, 'start_character': 476, 'end_paragraph_id': 46, 'end_character': 487, 'bleu_score': 1.0, 'section': 'Section::::Production.:Music.\n'}]}, {'provenance': [{'wikipedia_id': '471370', 'title': 'An American Werewolf in London', 'start_paragraph_id': 46, 'start_character': 0, 'end_paragraph_id': 46, 'end_character': 546, 'bleu_score': 0.869942257493001, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 187293880587529214}, 'section': 'Section::::Production.:Music.\n'}]}]