Question: who sings say something i give up on you
[{'answer': 'A Great Big World', 'provenance': [{'wikipedia_id': '4597311', 'title': 'Say Something', 'start_paragraph_id': 12, 'start_character': 29, 'end_paragraph_id': 12, 'end_character': 46, 'bleu_score': 1.0, 'section': 'Section::::Music.:Songs.\n'}]}, {'answer': 'Christina Aguilera'}]