Question: who did the whistling in the muppet movie
[{'answer': 'Andrew Bird', 'provenance': [{'wikipedia_id': '33168794', 'title': 'Walter (Muppet)', 'start_paragraph_id': 5, 'start_character': 541, 'end_paragraph_id': 5, 'end_character': 552, 'bleu_score': 1.0, 'section': 'Section::::Biography.\n'}]}, {'answer': 'musician Andrew Bird', 'provenance': [{'wikipedia_id': '33168794', 'title': 'Walter (Muppet)', 'start_paragraph_id': 5, 'start_character': 532, 'end_paragraph_id': 5, 'end_character': 552, 'bleu_score': 1.0, 'section': 'Section::::Biography.\n'}]}, {'provenance': [{'wikipedia_id': '33168794', 'title': 'Walter (Muppet)', 'start_paragraph_id': 5, 'start_character': 0, 'end_paragraph_id': 5, 'end_character': 699, 'bleu_score': 0.984188478234951, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 13441277823934468012}, 'section': 'Section::::Biography.\n'}]}, {'provenance': [{'wikipedia_id': '33168794', 'title': 'Walter (Muppet)', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 0, 'bleu_score': 1.0, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 13441277823934468012}, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '33168794', 'title': 'Walter (Muppet)', 'section': 'Section::::Biography.\n', 'start_paragraph_id': 5, 'end_paragraph_id': 5, 'meta': {'evidence_span': ['Later in the film, Walter starts to question whether he is man, which he was believed to be his entire life, or actually a Muppet, which was why he always felt a strong connection towards them. This emotion eventually leads him to sing the Academy Award-winning song, "Man or Muppet", where the human version of Walter is portrayed by actor Jim Parsons. The scene is pivotal to the character\'s arc as it resolves Walter\'s internal issues with himself. The character\'s solo act of whistling in the telethon\'s finale was performed by musician Andrew Bird. At the conclusion of the film, Walter deduces that he is a Muppet, adopts whistling as his sole talent and joins the group as their newest member', "The scene is pivotal to the character's arc as it resolves Walter's internal issues with himself. The character's solo act of whistling in the telethon's finale was performed by musician Andrew Bird. At the conclusion of the film, Walter deduces that he is a Muppet, adopts whistling as his sole talent and joins the group as their newest member", "The character's solo act of whistling in the telethon's finale was performed by musician Andrew Bird."]}}]}, {'provenance': [{'wikipedia_id': '33168794', 'title': 'Walter (Muppet)', 'section': 'Section::::Biography.\n', 'start_paragraph_id': 5, 'start_character': 452, 'end_paragraph_id': 5, 'end_character': 553, 'bleu_score': 1.0}]}]