Question: who sings the theme tune to strike back
[{'answer': 'Heavy', 'provenance': [{'wikipedia_id': '17647086', 'title': 'The Heavy (band)', 'start_paragraph_id': 0, 'start_character': 4, 'end_paragraph_id': 0, 'end_character': 9, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '17647086', 'title': 'The Heavy (band)', 'start_paragraph_id': 14, 'start_character': 0, 'end_paragraph_id': 14, 'end_character': 730, 'bleu_score': 0.8712337782219731, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 3205835603665157799}, 'section': 'Section::::In media.\n'}]}]