Question: when does chris brown's new album drop 2017
[{'answer': 'October 31 , 2017', 'provenance': [{'wikipedia_id': '50428431', 'title': 'Heartbreak on a Full Moon', 'start_paragraph_id': 15, 'start_character': 464, 'end_paragraph_id': 15, 'end_character': 481, 'bleu_score': 1.0, 'section': 'Section::::Release and promotion.\n'}]}]