
BTS reunited as a full seven–member group in Lisbon earlier this year to film the cinematic video for their new single Swim, with American actress Lili Reinhart joining them on board a real ship for the K‑pop band's first major release together since completing military service, according to the group's label.
For context, Swim is the lead track from Arirang, BTS' long‑awaited fifth studio album and their first all‑member project in several years. The record arrives after a staggered period of enlistment in South Korea's armed forces that saw RM, Jin, Suga, J‑hope, Jimin, V, and Jungkook pursuing solo work while fulfilling compulsory service. Arirang is being positioned as the formal start of a new chapter, backed by a Netflix live special, a documentary, and one of the most ambitious tours of the band's career.