ArtistIST Entertainment
Inhu
Kim In-hu (김인후), known by his stage name Inhu, is a South Korean vocalist and member of IST Entertainment's boy group TUNEXX. Born October 5, 2003, he emerged as a standout contestant on the 2025 Mnet survival competition Boys II Planet before securing his spot in the seven-member lineup.
Inhu entered IST Entertainment as a trainee approximately 14 months before his Boys II Planet appearance, a relatively short training period that speaks to his pre-existing vocal foundation. Though he was eliminated in episode 8 after ranking 36th overall, his performances drew attention from viewers and industry scouts alike. His vocal style draws influence from artists he cites as role models: Park Hyo-shin, Baekhyun, and Jungkook.
On January 15, 2026, IST Entertainment announced Inhu as a member of TUNEXX alongside fellow Boys II Planet contestants Sihwan, Donggyu, and Arctic, plus three additional trainees. The group's name merges "tune" with "X," representing both the undefined nature of their sound and their intent to cross genre boundaries.
TUNEXX debuted on March 3, 2026 with their first EP Set By Us Only at a showcase held at Yes24 Live Hall in Seoul. The release marked IST Entertainment's latest investment in the competitive boy group market. During press interviews, Inhu articulated the group's philosophy: "We don't define ourselves in specific frames or genres." This adaptability, combined with his self-described strength of perseverance, positions him as a versatile presence within the group's vocal line.
1 articles3 creditsDebut: March 3, 2026South Korean
Fans Also Ask
What is Inhu's role in TUNEXX?
Inhu (Kim In-hu, 김인후) is the Lead Vocalist of TUNEXX, IST Entertainment's seven-member boy group. Born in Osan, Gyeonggi Province, he gained recognition competing on Mnet's Boys II Planet (2025) before being officially named to the TUNEXX lineup on January 15, 2026.
How did Inhu come to join TUNEXX?
Inhu was one of four TUNEXX members -- alongside Donggyu, Sihwan, and Arctic -- who competed on Mnet's Boys II Planet (2025). Eliminated in episode 10, he was later selected by IST Entertainment for the final lineup. He had previously trained under BPM Entertainment.
What was TUNEXX's debut release?
TUNEXX debuted on March 3, 2026 with their first mini album SET BY US ONLY, featuring the title track Proof That I Am Alive. The group had already built momentum with pre-debut OST One Last Chance, released January 16, 2026 for the SBS drama No Tail to Tell.
Who are Inhu's musical influences?
Inhu has cited Park Hyoshin, EXO's Baekhyun, and BTS' Jungkook as his role models -- three of K-pop's most technically accomplished vocalists. His personal mantra: 'There may be a door to enter, but no door to exit,' reflecting his commitment once he commits to a craft.
