Heeseung

Lee Hee-seung, known mononymously as Heeseung, is a South Korean singer and performer. Born on October 15, 2001, in Uiwang, Gyeonggi Province, South Korea, he developed a passion for music during his childhood. Prior to his official public debut, he trained for over three years under Big Hit Entertainment, developing his vocal abilities, dance performance skills, and musical capabilities.

Heeseung first achieved prominent public recognition in 2020 as a contestant on I-LAND, a music competition survival show produced by CJ ENM and Big Hit Entertainment. Throughout the show, he consistently received high performance scores from evaluators and accumulated strong international fan support, ultimately ranking among the top final contestants. This success secured his place as a founding member of the boy group ENHYPEN, managed by Belift Lab.

Heeseung made his official debut with ENHYPEN in November 2020 upon the release of their debut extended play, Border: Day One. Serving as a primary vocalist, he contributed to several major music releases, including the studio album Dimension: Dilemma and extended plays such as Dark Blood. During his tenure, the group earned numerous music industry accolades, achieved multi-platinum record sales, and executed major concert tours across Asia, North America, and Europe. In 2026, Belift Lab announced that Heeseung would transition to a solo career to focus on his personal creative direction.