Question: who is the guy in the i write sins not tragedies music video
[{'answer': 'groom , Daniel Isaac McGuffey', 'provenance': [{'wikipedia_id': '4591307', 'title': 'I Write Sins Not Tragedies', 'start_paragraph_id': 10, 'start_character': 61, 'end_paragraph_id': 10, 'end_character': 90, 'bleu_score': 1.0, 'section': 'Section::::Music video.\n'}]}, {'answer': 'vocalist Brendon Urie', 'provenance': [{'wikipedia_id': '4591307', 'title': 'I Write Sins Not Tragedies', 'start_paragraph_id': 10, 'start_character': 351, 'end_paragraph_id': 10, 'end_character': 372, 'bleu_score': 1.0, 'section': 'Section::::Music video.\n'}]}, {'provenance': [{'wikipedia_id': '4591307', 'title': 'I Write Sins Not Tragedies', 'start_paragraph_id': 10, 'start_character': 0, 'end_paragraph_id': 10, 'end_character': 782, 'bleu_score': 0.9853469949554711, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 11254135886466947660}, 'section': 'Section::::Music video.\n'}]}]