Looks like Earn is getting himself in trouble again. The allure of “Summertime Magic” rests on the accurate timing of a summer fling. No more no less visible than in the eyes of “Chico” when he gets the sweet lowdown from Tony Montana. Donald Glover aka Childish Gambino keeps teasing the retirement of his moniker, because he’d rather reinvent himself than put us through the tedium of a sequel or third act. And yet, the Childish Gambino moniker persists months after he promised to pull it from the shelves.