Brace yourself: Before kei goes to the top of the charts, she’s going “berserk.” “Anything I do / I kill / I murder,” the Boston artist threatens on her new GIB-DJ-produced single, which dropped last Friday (September 23). Menace comes easy for this high-octane hellraiser, as we’ve already heard in terrible twos, kei’s impressive EP of whiplash-rap from this summer. On “berserk,” her energy level remains unmatched and unhinged — and apparently, it’s been like that since day one. “I … Continue reading kei is going ‘berserk’ and be warned, she’s taking you with her