Question: who sang all that jazz in the movie chicago
[{'answer': 'Velma Kelly', 'provenance': [{'wikipedia_id': '201534', 'title': 'Chicago (2002 film)', 'start_paragraph_id': 1, 'start_character': 351, 'end_paragraph_id': 1, 'end_character': 362, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '201534', 'title': 'Chicago (2002 film)', 'start_paragraph_id': 3, 'start_character': 0, 'end_paragraph_id': 3, 'end_character': 319, 'bleu_score': 0.7819384481360171, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 15980360184733323160}, 'section': 'Section::::Plot.\n'}]}]