Question: who sang who let the dogs out song
[{'answer': 'Baha Men', 'provenance': [{'wikipedia_id': '1707010', 'title': 'Who Let the Dogs Out?', 'start_paragraph_id': 1, 'start_character': 66, 'end_paragraph_id': 1, 'end_character': 74, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]