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New Music: "91 Flex" by Serious Klein Serious KleinSabina Palmieri

Germany-based, Ghanian rapper Serious Klein is joined by longtime collaborator Rascal (Chance The Rapper, SiR, Elhae and Mick Jenkins) on "91 Flex." Serious Klein's quick flow pairs beautifully with the hard-hitting , thumping production as he spills lyrics spanning from his come up to putting his competition and critics on blast.