Question: who sang let's get this party started
[{'answer': 'Zena', 'provenance': [{'wikipedia_id': '21997754', 'title': "Let's Get This Party Started", 'start_paragraph_id': 8, 'start_character': 54, 'end_paragraph_id': 8, 'end_character': 58, 'bleu_score': 1.0, 'section': 'Section::::Music.\n'}]}, {'answer': 'Take 5', 'provenance': [{'wikipedia_id': '21997754', 'title': "Let's Get This Party Started", 'start_paragraph_id': 9, 'start_character': 47, 'end_paragraph_id': 9, 'end_character': 53, 'bleu_score': 1.0, 'section': 'Section::::Music.\n'}]}, {'answer': 'Azuré & Snoop Dogg', 'provenance': [{'wikipedia_id': '21997754', 'title': "Let's Get This Party Started", 'start_paragraph_id': 11, 'start_character': 54, 'end_paragraph_id': 11, 'end_character': 71, 'bleu_score': 1.0, 'section': 'Section::::Music.\n'}]}, {'answer': 'Korn', 'provenance': [{'wikipedia_id': '21997754', 'title': "Let's Get This Party Started", 'start_paragraph_id': 12, 'start_character': 54, 'end_paragraph_id': 12, 'end_character': 58, 'bleu_score': 1.0, 'section': 'Section::::Music.\n'}]}, {'answer': 'Macy Gray', 'provenance': [{'wikipedia_id': '21997754', 'title': "Let's Get This Party Started", 'start_paragraph_id': 13, 'start_character': 54, 'end_paragraph_id': 13, 'end_character': 63, 'bleu_score': 1.0, 'section': 'Section::::Music.\n'}]}, {'answer': 'Roma', 'provenance': [{'wikipedia_id': '21997754', 'title': "Let's Get This Party Started", 'start_paragraph_id': 14, 'start_character': 54, 'end_paragraph_id': 14, 'end_character': 58, 'bleu_score': 1.0, 'section': 'Section::::Music.\n'}]}, {'answer': 'Dee Dee Sharp', 'provenance': [{'wikipedia_id': '21997754', 'title': "Let's Get This Party Started", 'start_paragraph_id': 15, 'start_character': 54, 'end_paragraph_id': 15, 'end_character': 67, 'bleu_score': 1.0, 'section': 'Section::::Music.\n'}]}, {'answer': 'Funk Machine Sasha John Digweed', 'provenance': [{'wikipedia_id': '21997754', 'title': "Let's Get This Party Started", 'start_paragraph_id': 16, 'start_character': 54, 'end_paragraph_id': 16, 'end_character': 85, 'bleu_score': 1.0, 'section': 'Section::::Music.\n'}]}, {'answer': 'Robbie Rivera', 'provenance': [{'wikipedia_id': '21997754', 'title': "Let's Get This Party Started", 'start_paragraph_id': 17, 'start_character': 54, 'end_paragraph_id': 17, 'end_character': 67, 'bleu_score': 1.0, 'section': 'Section::::Music.\n'}]}, {'answer': "2face Idibia , Wizkid , D'banj , Tiwa Savage , and M.I"}]