Question: who sings the hook on i ain't mad at cha
[{'answer': 'Danny Boy Steward'}, {'provenance': [{'wikipedia_id': '2342363', 'title': 'Danny Boy (singer)', 'start_paragraph_id': 3, 'start_character': 0, 'end_paragraph_id': 3, 'end_character': 831, 'bleu_score': 0.7481518342141751, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 6255757537843676041}, 'section': 'Section::::Career.\n'}]}]