Jin (진)

"The Astronaut," released in October 2022 just weeks before Jin enlisted for mandatory military service, offered a rare preview of what a solo career from BTS's oldest member might look like — a polished, emotionally grounded rock-pop single co-written with Coldplay that debuted at number 51 on the Billboard Hot 100 and reached number one on the Global Excl. US chart. That release, brief as it was, established Jin as a solo presence separate from the group context he had occupied for nearly a decade.

From group member to solo artist

Kim Seok-jin joined BTS under Big Hit Music and has served the group as a sub-vocalist and its designated visual since the group's 2013 debut. His individual output within BTS remained notable across that period, producing fan-favorite solo tracks on group albums, but a formal solo discography came later than those of some fellow members. "The Astronaut" changed that calculus. Performed live at BTS's Busan concert in late 2022, the single also marked a farewell of sorts: Jin completed his mandatory South Korean military service, finishing in June 2024 as one of the first BTS members to do so.

Music & Discography

The post-military chapter has been Jin's most active as a solo artist. His debut extended play Happy, released in 2024, introduced him properly to the solo market and was followed in 2025 by a second EP, Echo, suggesting a consistent release cadence rather than a one-off experiment. The musical throughline across his solo work leans toward melodic, mid-tempo pop construction — warmer in texture than the harder-edged material BTS has periodically pursued — with Jin's clear, upper-register vocal delivery as the central instrument.

In early 2026, Jin was involved in the rollout of BTS's fifth full-length album Arirang, released in March of that year, though his name was absent from the album's songwriting credits. Coverage at the time noted that members explained his exclusion by citing his condition and a conflicting tour schedule, a point that generated discussion among fans. The group subsequently launched Arirang world tour activity, with Jin confirmed among the participants.

Live work

The RunSeokjin Ep. Tour represents Jin's first headlining concert tour as a solo act, a significant step for an artist whose live exposure had previously been almost exclusively within the BTS framework. In March 2026, Jin confirmed he was preparing for the Arirang world tour beginning in April, running the two live commitments in close proximity. A Gwanghwamun comeback show tied to the Arirang release drew attention internationally, and Jin addressed it the day before the album dropped, describing the venue's significance and promising a strong performance.

Standing

Jin's position within BTS has always carried a particular public dimension — he has spoken candidly about having considered leaving the industry after seven years, and about relying on his on-camera presence to sustain his early career. That self-awareness sits alongside a public profile that extends beyond music into gaming (a MapleStory collaboration in 2026 reflected a well-documented personal interest) and a steady social media presence that draws consistent audience engagement. His return from military service, followed quickly by solo EP releases, a headline tour, and continued participation in BTS's group activities, positions him in 2025 and 2026 as one of the more prolific members of the group in terms of individual output during what the industry has broadly treated as BTS's post-hiatus reactivation period.