Question: who sang the song 1 2 3 4
[{'answer': 'Feist', 'provenance': [{'wikipedia_id': '13820944', 'title': '1234 (Feist song)', 'start_paragraph_id': 0, 'start_character': 6, 'end_paragraph_id': 0, 'end_character': 11, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '13820944', 'title': '1234 (Feist song)', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 327, 'bleu_score': 0.9262685672663881, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 17182726299278381697}, 'section': 'Section::::Abstract.'}]}]