Premise: Shayaa Bin Abraham-Joseph (born October 22, 1992), better known by his stage name 21 Savage, is an American rapper from Atlanta, Georgia. He was best known for his mixtapes, "The Slaughter Tape" and "Slaughter King" and his extended plays "Free Guwop" and "Savage Mode" with Metro Boomin before the release of his debut album, "ISSA" and its lead single, "Bank Account".
Hypothesis: 21 Savage and Metro Boomin partnered on the majority of 21 Savage's work.