Question: who sings theme song for one tree hill
[{'answer': 'Gavin DeGraw', 'provenance': [{'wikipedia_id': '5647713', 'title': "I Don't Want to Be", 'start_paragraph_id': 1, 'start_character': 34, 'end_paragraph_id': 1, 'end_character': 46, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '5647713', 'title': "I Don't Want to Be", 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 350, 'bleu_score': 0.9474438616935651, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 123459697396529924}, 'section': 'Section::::Abstract.'}]}]