Eunseok

Song Eun-seok (송은석), performing as Eunseok, is a lead vocalist of RIIZE. Born March 19, 2001, in Seoul, he stands 180cm and carries an ISTP personality type. By his own account, he was very quiet through middle school but drew significant attention from peers for his looks, a dynamic that did not particularly change how he operated. His hobbies are watching anime, reading manga, and cooking. He has a younger brother, born in 2015. His favorite sport is basketball, and his role model is SHINee, a reference point that locates him within SM Entertainment's own vocal and performance lineage. Eunseok was revealed publicly in July 2022 as part of SM Entertainment's SM Rookies program alongside what would become the RIIZE lineup. After a period of pre-debut visibility through SMROOKIES content, he made his official debut with the group on September 4, 2023, with the single album "Get A Guitar." Within RIIZE, Eunseok provides essential vocal depth and baritone range that anchors the group's harmonic sound. His visual designation and stage presence carry their own weight in the group's public identity: his tall frame, composed delivery, and restrained expressiveness have made him one of the most frequently highlighted members in international fancam coverage. His contributions spanned the group's rapid discography: the debut single album (2023), the mini-album "RIIZING" (2024), and the full-length "ODYSSEY" (2025). By February 2026, RIIZE completed a historic three-night run at Tokyo Dome, drawing 120,000 fans and becoming the fastest K-pop boy group to headline the venue.