Question: who sang lead vocals on don't worry baby
[{'answer': 'Brian Wilson', 'provenance': [{'wikipedia_id': '4705418', 'title': "Don't Worry Baby", 'start_paragraph_id': 1, 'start_character': 48, 'end_paragraph_id': 1, 'end_character': 60, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '4705418', 'title': "Don't Worry Baby", 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 446, 'bleu_score': 0.976327165973018, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 3803109867756746483}, 'section': 'Section::::Abstract.'}]}]