Question: who sang hey now you're a rockstar
[{'answer': 'Smash Mouth', 'provenance': [{'wikipedia_id': '3474542', 'title': 'All Star (song)', 'start_paragraph_id': 1, 'start_character': 43, 'end_paragraph_id': 1, 'end_character': 54, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '3474542', 'title': 'All Star (song)', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 237, 'bleu_score': 0.923746034997815, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 17810120938387574350}, 'section': 'Section::::Abstract.'}]}]