K-pop supergroup BTS' upcoming comeback concert in central Seoul is expected to draw about 15,000 ticketed fans, music industry sources said Tuesday. According to the sources, Hybe, the K-pop company behind BTS, is coordinating with the Seoul metropolitan government on a plan to admit 15,000 fans in the standing and reserved seating sections for the "BTS The Comeback Live: Arirang" concert on March 21. The free concert will take place at Gwanghwamun Square the day after the release of BTS' fifth studio album, "Arirang," named after the famous Korean folk song. It will be its first release since "Proof" in June 2022 and the first since all members completed their mandatory military service. The septet plans to walk from inside Gyeongbok Palace, passing through the Gwanghwamun gate and the "woldae," a traditional ceremonial stage located in front of the gate, before moving onto a stage built at the northern end of the square to open the show. Applications for 2,000 standing tickets opened on Tuesday via Hybe's K-pop fan community platform Weverse for those who preordered the album. Accordin