Cultural heritage authorities have granted conditional approval for K-pop megastar BTS to film at major historic sites in central Seoul, as the band plans a major performance in the Gwanghwamun area to promote its long-awaited comeback in March. The Korea Heritage Service said Tuesday its Cultural Heritage Committee reviewed and conditionally approved a request by Hybe, the K-pop company behind BTS, to use Gyeongbok Palace and the Sungnyemun gate for the project. The approval requires a subcommi