K-pop megastars BTS made a triumphant return to the stage on Saturday, holding a free concert at Gwanghwamun Square in central Seoul to celebrate the release of their fifth studio album, "Arirang."The performance from 8 p.m., which was also streamed live on Netflix for global fans, marked the first time all seven members have appeared together on stage since completing their mandatory military service.With tens of thousands of fans flocking to the venue at one of the most popular and historical sites in Seoul, the event served as a grand showcase for the group's first group release in three…READ FULL ARTICLE