YEONJUN (연준), born as Choi Yeon Jun (최연준), is a South Korean singer, rapper, dancer, and songwriter. He’s best known as a member of the K-pop boy group TOMORROW X TOGETHER.

He debuted with the group on March 4th, 2019, under BigHit Entertainment (now BIGHITMUSIC), and was the first member to be introduced publicly. His introduction was accompanied by a trailer video “What do you do?”. In 2024, YEONJUN released his solo mixtape “GGUM”. In 2025, YEONJUN released his solo debut album NO LABELS: PART 01.

Before debuting with TXT, Yeonjun was a trainee of CUBE Entertainment, and also passed his first audition to WH Entertainment.