Roots of Blue Sky Black Death

Noah Raymond Brickley, better known by his stage name Noah23, is a Canadian-American hip hop artist from Guelph, Ontario. He is co-founder of the Plague Language collective and record label, and has been described as "one of Canada's best, most underrated MCs".

Robert Smith, better known by his stage name Rob Sonic, is an American rapper and record producer from the Bronx, New York. He has been a member of the groups Sonic Sum and Hail Mary Mallon. He is a founder of the record label Skypimps Music.

Mike Ladd is an American alternative hip-hop artist. Based in Paris, France, The Guardian once described him as "the king of the hip-hop concept."

Julio Francisco Ramos, better known as Ceschi Ramos, or simply as Ceschi, is an American rapper from New Haven, Connecticut. He is a co-founder of Fake Four Inc. He won the Connecticut Music Awards for Best Hip Hop in 2014.