Choi Yeon-jun (Korean: 최연준; born September 13, 1999), known monomously as Yeonjun (연준), is a South Korean singer and dancer. He debuted on March 4, 2019 as a member of South Korean boy group TOMORROW X TOGETHER under BigHit Music. Yeonjun made his solo debut on September 19, 2024 with the single GGUM from the single album GGUM. The album was physically released on October 29, 2024. On November 7, 2025 his first official mini album NO LABELS: PART 01 was released.