Donald Glover’s Childish Gambino rap alter ego has been making waves for a hot minute now and doesn’t look to be showing any signs of slowing down. After dropping his debut full-length studio album Because the Internet late last year ‘Bino has been on a roll, garnering critical acclaim and topping the charts. Now he’s prepping his forthcoming STN MTN/Kauai project with DJ Drama’s Gangsta Grillz mixtape series. ‘Bino recently dropped “Sober”, a teaser for the project. Peep it after the jump.