Choi Yeon-jun, known mononymously as Yeonjun, is a South Korean singer and songwriter under Big Hit Music. He is a member of the South Korean boy group TOMORROW X TOGETHER (TXT). He debuted as a soloist in September 2024 with the song GGUM and released his first extended play No Labels: Part 01, on November 7, 2025, and Part 02, also an EP, on July 10, 2026.