Question: who was in dont worry be happy video
[{'answer': 'McFerrin', 'provenance': [{'wikipedia_id': '1390782', 'title': "Don't Worry, Be Happy", 'start_paragraph_id': 1, 'start_character': 83, 'end_paragraph_id': 1, 'end_character': 91, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Robin Williams', 'provenance': [{'wikipedia_id': '1390782', 'title': "Don't Worry, Be Happy", 'start_paragraph_id': 9, 'start_character': 62, 'end_paragraph_id': 9, 'end_character': 76, 'bleu_score': 1.0, 'section': 'Section::::Music video.\n'}]}, {'answer': 'Bill Irwin', 'provenance': [{'wikipedia_id': '1390782', 'title': "Don't Worry, Be Happy", 'start_paragraph_id': 9, 'start_character': 82, 'end_paragraph_id': 9, 'end_character': 92, 'bleu_score': 1.0, 'section': 'Section::::Music video.\n'}]}, {'answer': 'McFerrin , Robin Williams , and Bill Irwin'}, {'provenance': [{'wikipedia_id': '1390782', 'title': "Don't Worry, Be Happy", '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': 14195500938903958719}, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '1390782', 'title': "Don't Worry, Be Happy", 'start_paragraph_id': 9, 'start_character': 0, 'end_paragraph_id': 9, 'end_character': 140, 'bleu_score': 0.9146912192286941, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 14195500938903958719}, 'section': 'Section::::Music video.\n'}]}, {'provenance': [{'wikipedia_id': '1390782', 'title': "Don't Worry, Be Happy", 'section': 'Section::::Music video.\n', 'start_paragraph_id': 9, 'end_paragraph_id': 9, 'meta': {'evidence_span': ['the song stars McFerrin, Robin Williams, and Bill Irwin', 'The comedic original music video for the song stars McFerrin, Robin Williams, and Bill Irwin, and is somewhat shorter than the album version.']}}]}]