Question: who sings old time rock and roll song
[{'answer': 'Bob Seger', 'provenance': [{'wikipedia_id': '7117844', 'title': 'Old Time Rock and Roll', 'start_paragraph_id': 1, 'start_character': 102, 'end_paragraph_id': 1, 'end_character': 111, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '7117844', 'title': 'Old Time Rock and Roll', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 731, 'bleu_score': 0.792789905277681, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 4733606228502465498}, 'section': 'Section::::Abstract.'}]}]