Atlanta rapper Key! hit up 824 Dundas ST. W this past Saturday. You've probably heard Key! on OG Maco's banger 'U Guess It'. Self-styled as 'Fatman Key', the 26-year-old has a gravitas and self-awareness that belies his age. He comes on the cusp of a new generation of rappers. Broaching subjects like gender identity, mental illness, and difficult pasts; he has a lot in common with the openers.