Question: who sings theme song for king of queens
[{'answer': 'Vera', 'provenance': [{'wikipedia_id': '921970', 'title': 'Billy Vera', 'start_paragraph_id': 0, 'start_character': 6, 'end_paragraph_id': 0, 'end_character': 10, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '921970', 'title': 'Billy Vera', 'start_paragraph_id': 13, 'start_character': 0, 'end_paragraph_id': 13, 'end_character': 862, 'bleu_score': 0.986797956037998, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 10852048504215074343}, 'section': 'Section::::Life and career.:1970s thru 1990s.\n'}]}]