Question: Rodney Jerkins (born July 29, 1977), also known by his stage name Darkchild, is an American record producer, songwriter and rapper, he has collaborated with a broad range of popular artists, including Justin Drew Bieber, a Canadian singer and songwriter, after a talent manager discovered him through his YouTube videos covering songs in which year, and signed to RBMG?
{'answer': '2008', 'supporting_facts': [['Rodney Jerkins', 1], ['Justin Bieber', 1]]}