Question: stuck in the middle theme song who sings
[{'answer': 'Grace Potter', 'provenance': [{'wikipedia_id': '925085', 'title': 'Stuck in the Middle with You', 'start_paragraph_id': 23, 'start_character': 11, 'end_paragraph_id': 23, 'end_character': 23, 'bleu_score': 1.0, 'section': 'Section::::Cover versions.\n'}]}, {'provenance': [{'wikipedia_id': '925085', 'title': 'Stuck in the Middle with You', 'start_paragraph_id': 23, 'start_character': 0, 'end_paragraph_id': 23, 'end_character': 81, 'bleu_score': 0.6910621773335011, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 13699319567625182225}, 'section': 'Section::::Cover versions.\n'}]}]