Question: who sang lead vocals on twist and shout by the beatles
[{'answer': 'John Lennon', 'provenance': [{'wikipedia_id': '716985', 'title': 'Twist and Shout', 'start_paragraph_id': 22, 'start_character': 152, 'end_paragraph_id': 22, 'end_character': 163, 'bleu_score': 1.0, 'section': 'Section::::The Beatles version.\n'}]}]