Question: what was the number 1 song in january 2006
[{'answer': "Do n't Forget About Us", 'provenance': [{'wikipedia_id': '3508951', 'title': 'List of Billboard Hot 100 number-one singles of 2006', 'start_paragraph_id': 1, 'start_character': 388, 'end_paragraph_id': 1, 'end_character': 410, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Laffy Taffy'}, {'answer': 'Grillz'}]