Jon Z was already flexing his outrageous array of flows on the 2017 mixtape JonTrapVolta, and 420 pushes his already off-the-wall style into wild new terrain. The beats may be ruthlessly stripped-down throughout, sticking mostly to battering and bass-forward trap. But for every head-nodding display of hypnotic rhyme prowess like the rugged title cut, the Puerto Rican rapper is just as likely to deliver the swag-drunk boasts of "Poli Molly Mari" with an unlikely dose of Drake-esque melody.