KSI originally gained notoriety for his comedic YouTube channel, but he’s an equally gifted rapper, tackling UK grime with a ferocious bite. As its name implies, the Disstracktions EP finds him going full scorched earth, particularly toward his fellow social-media personalities: “Little Boy” drops some lightning-quick verses against the FIFA-commentating W2S, while “Earthquake” slows things down for some ugly slams against his former partner Behzinga.