Question: who sings the songs in the movie selena
[{'answer': 'Selena', 'provenance': [{'wikipedia_id': '275547', 'title': 'Selena (film)', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 6, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '275547', 'title': 'Selena (film)', 'start_paragraph_id': 39, 'start_character': 0, 'end_paragraph_id': 39, 'end_character': 1755, 'bleu_score': 0.9937204875261171, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 2474668118624096438}, 'section': 'Section::::Production.:Filming.\n'}]}]