K-pop powerhouse BTS has made their comeback as a group with a highly anticipated album “Arirang” following nearly four years of hiatus. CNN’s Hanako Montgomery describes the atmosphere from Seoul, where BTS fans,

BTS’ much publicised free comeback concert at Gwanghwamun Square has triggered fresh debate after turnout numbers appeared to fall significantly short of initial projections.

The hour-long concert in historic Gwanghwamun Square marks the ​release of the seven-member group's first album in more than three ​years, ahead of a global tour starting next month.