Choi Yeon-jun, known mononymously as Yeonjun, has established himself as one of the standout performers of TXT. Before debuting, he spent four years training under Big Hit Entertainment and became known as the company’s “legendary trainee” after repeatedly ranking first in monthly evaluations for dance, vocals and rap.
Since TXT’s debut in 2019, Yeonjun has expanded his career beyond group activities. He has worked as a songwriter, collaborated with artists including Salem Ilese and Alan Walker, appeared in a drama, walked at New York Fashion Week and hosted major Korean music programs.
In 2024, Yeonjun officially stepped into his solo career with “Ggum,” earning his first music show win. He later released his debut solo EP, No Labels: Part 01, in 2025, followed by No Labels: Part 02 in 2026.
Think you know Yeonjun’s career? Put your knowledge to the test with these 10 questions.
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Answer Key:
A — September 13, 1999
B — Tomorrow X Together
C — Four years
B — Legendary Trainee
C — “Ggum”
A — Alan Walker
C — Inkigayo
A — No Labels: Part 01
C — July 10, 2026
B — “Ggum”
How Did You Score?
8-10 Correct: Impressive! You know Yeonjun’s journey from “legendary trainee” to TXT member, host and successful solo artist.
5-7 Correct: You clearly know your Yeonjun facts, from his trainee years to his work outside TXT.
1-4 Correct: You have a good understanding of Yeonjun’s journey with TXT and his growing solo career.
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