Question: who sings the theme tune for strike back
[{'answer': 'the Heavy', 'provenance': [{'wikipedia_id': '17647086', 'title': 'The Heavy (band)', 'start_paragraph_id': 5, 'start_character': 18, 'end_paragraph_id': 5, 'end_character': 27, 'bleu_score': 1.0, 'section': 'Section::::History.\n'}]}, {'provenance': [{'wikipedia_id': '17647086', 'title': 'The Heavy (band)', 'start_paragraph_id': 14, 'start_character': 0, 'end_paragraph_id': 14, 'end_character': 730, 'bleu_score': 0.9276343221413411, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 1037761815958089389}, 'section': 'Section::::In media.\n'}]}]