Question: The lead singer for the pop rock band Maroon 5 was a returning coach on the fourth season of an American reality talent show that premied on what date?
{'answer': 'March 25, 2013', 'supporting_facts': [['The Voice (U.S. season 4)', 0], ['The Voice (U.S. season 4)', 1], ['Adam Levine', 0], ['Adam Levine', 1]]}