“Going to Pop’s?” used to be an almost clichéd question after 1 AM in Jackson, along with “Going to the Subway?” You might encounter almost anything at Pops Saloon, from driving country music to—on one infamously surreal occasion during the Melton Administration—the mayor of Jackson dancing unsteadily to “On the Road Again” as performed by a local country band. Beyond that, it’s your standard...