I'm the One is a song that included an apperance by the Canadian singer who was first signed to what label in 2008?
Justin Bieber: Justin Drew Bieber ( ; born March 1, 1994) is a Canadian singer and songwriter. Justin Bieber:  After a talent manager discovered him through his YouTube videos covering songs in 2008 and signed to RBMG, Bieber released his debut EP, "My World", in late 2009.
i don't know