Question: who sings the song let's hear it for the boy
[{'answer': 'Deniece Williams', 'provenance': [{'wikipedia_id': '5916391', 'title': "Let's Hear It for the Boy", 'start_paragraph_id': 1, 'start_character': 41, 'end_paragraph_id': 1, 'end_character': 57, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]