Question: who did the voice of michael jackson on the simpsons
[{'answer': 'Michael Jackson', 'provenance': [{'wikipedia_id': '3120119', 'title': 'Stark Raving Dad', 'start_paragraph_id': 1, 'start_character': 350, 'end_paragraph_id': 1, 'end_character': 365, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]