Question: who sang the original version of rockin robin
[{'answer': 'Bobby Day', 'provenance': [{'wikipedia_id': '6714524', 'title': "Rockin' Robin (song)", 'start_paragraph_id': 1, 'start_character': 170, 'end_paragraph_id': 1, 'end_character': 179, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '6714524', 'title': "Rockin' Robin (song)", 'start_paragraph_id': 1, 'start_character': 88, 'end_paragraph_id': 1, 'end_character': 349, 'bleu_score': 0.8358213710926451, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 534602746163190107}, 'section': 'Section::::Abstract.'}]}]