Formed by Toronto DJs/producers K. Cut, Sir Scratch, and Queens MC/producer Large Professor, Main Source was one of the seminal groups of the East Coast's hip-hop scene in 90's. The original trio's first and only album Breaking Atoms, was released in 1991 to critical and commercial acclaim, before Large Professor left the group. They recorded a second album, The Science, and even ran ads for it in The Source, before the group's breakup led to it's indefinite shelving. Until now!