Question: who sings so wake me up when it's all over
[{'answer': 'Avicii', 'provenance': [{'wikipedia_id': '39700576', 'title': 'Wake Me Up (Avicii song)', 'start_paragraph_id': 0, 'start_character': 12, 'end_paragraph_id': 0, 'end_character': 18, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '39700576', 'title': 'Wake Me Up (Avicii song)', 'start_paragraph_id': 5, 'start_character': 0, 'end_paragraph_id': 5, 'end_character': 1143, 'bleu_score': 0.990888145196896, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 13785931828828800011}, 'section': 'Section::::Background.\n'}]}]