On September 12, The Chainsmokers held a concert at Jamsil Arena in Seoul with 8,500 fans occupying the concert hall.
오프라인 - SBS 뉴스
During the concert, BTS showed up on stage and performed The Chainsmokers' hit song 'Closer' together.
BTS said, "We were invited by The Chainsmokers. We are glad that everyone's enjoying the concert."
오프라인 - SBS 뉴스
Meanwhile on September 11, a source revealed that The Chainsmokers will collaborate with BTS on BTS' upcoming track 'Best of Me' in its new album 'Love Yourself 承 Her'.
오프라인 - SBS 뉴스
(Credit = Hyundai Card/SBS funE, 'sonymusickorea' Facebook)