BTS are a seven-member South Korean boy band, and fanchants are a long-running K-pop tradition where fans chant member names together during live performances. In this clip, the crowd calls out Kim Namjoon, Kim Seokjin, Min Yoongi, Jung Hoseok, Park Jimin, Kim Taehyung and Jeon Jungkook before shouting BTS as one voice. ARMY, the group's fanbase, use these chants at concerts, fan meets and online edits to show support and create a shared, stadium-like atmosphere. That communal energy is why the chant still appears in reaction videos and fan edits today.