Question: who sang the song valerie before amy winehouse
[{'answer': 'The Zutons', 'provenance': [{'wikipedia_id': '8187979', 'title': 'Valerie (The Zutons song)', 'start_paragraph_id': 0, 'start_character': 9, 'end_paragraph_id': 0, 'end_character': 19, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]