Question: who sings the dragon ball z kai theme
[{'answer': 'Japanese singer Takayoshi Tanimoto', 'provenance': [{'wikipedia_id': '22769554', 'title': 'Dragon Soul', 'start_paragraph_id': 1, 'start_character': 39, 'end_paragraph_id': 1, 'end_character': 73, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '22769554', 'title': 'Dragon Soul', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 431, 'bleu_score': 0.9735040436119741, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 15363646780734116922}, 'section': 'Section::::Abstract.'}]}]