Matthew Jefferson, also known as Kemba and formerly YC the Cynic, was born on November 21, 1990, in Hunts Point, Bronx, New York. He began his music career under the name YC the Cynic, releasing his debut mixtape You're Welcome in 2010, which included covers of 1990s classics. His second mixtape, Fall FWD, followed in 2011 and featured mostly original production. In 2013, he released the collaborative project GNK with producer Frank Drake. Under the name Kemba, he released the album Negus in 2016. He was featured on XXXTENTACION's album Bad Vibes Forever in 2019.
