BTS: “Map of the Soul: Persona” album review

In 2013, BTS was just another Korean boy band signed to a small label that hardly anyone had heard of. Six years and a K-pop global explosion later, they are the most popular boy band in the world, which is why fans around the globe set their alarm clocks (or pulled all-nighters) to catch the global release of “Map of the Soul: Persona” at precisely 6 p.m. KST (2 a.m. PT/ 5 a.m. ET).