Yeonjun: Age, Career, Solo Music, and TXT Journey

Yeonjun is a South Korean singer, dancer, and songwriter. He became known to the public as the first revealed member of Tomorrow X Together, a group created by Big Hit Music. From his first appearance, he gained attention for strong stage control and confident movement during performances.

As his career grew, Yeonjun appeared across music programs, concerts, and international events. His work later expanded into solo releases, television hosting, acting appearances, and fashion projects. These activities helped him reach listeners and viewers in many countries and age groups.

Many people recognize Yeonjun for how comfortable he looks during live stages and public events. His performances show careful preparation and consistent delivery. At the same time, his public appearances often feel relaxed and easy to follow, which helps audiences connect with him.

Today, Yeonjun remains active in music and entertainment. He continues working as a member of Tomorrow X Together while also developing his solo work. His career reflects years of training, public exposure, and ongoing creative effort.

Early Life and Education

Yeonjun was born on September 13, 1999, in Bundang District, Seongnam, South Korea. His birth name is Choi Yeon-jun. He grew up as an only child and spent his early years in Seoul. During childhood, he showed interest in music and performance, often taking part in dance-related activities during school events.

For two years, Yeonjun lived in the United States. During this time, he learned English and experienced daily life in a different country. After returning to South Korea, he continued his education while maintaining a strong interest in music and performance. This experience later helped him communicate more easily during overseas schedules and interviews.

Yeonjun attended Korean Arts High School, where he focused on performance studies. The school supports students preparing for careers in music, dance, and acting. While enrolled, he balanced academic work with trainee responsibilities, which required long practice hours and personal discipline.

After finishing high school, Yeonjun enrolled at Global Cyber University. The university’s format allows students to continue their studies while working full schedules. This option made it possible for him to remain active in entertainment while continuing his education.

His early years reflect a path that included education, training, and exposure to different environments. These experiences helped prepare him for the demands of a public career in music and entertainment.

Training Years and Pre-Debut Period

Yeonjun began his trainee period after joining Big Hit Entertainment as a teenager. He trained under the company for four years before making his official debut. During this time, his daily routine focused on singing, dancing, and rap practice, along with physical conditioning and stage preparation. Training days were long and demanding, with regular evaluations used to measure progress.

Within the company, Yeonjun gained attention for placing first in monthly evaluations on a regular basis. These evaluations covered dance performance, vocal delivery, and rap skills. His consistent results led staff and fellow trainees to view him as one of the strongest performers in the trainee group. This reputation followed him throughout his remaining time before debut.

Before joining Big Hit, Yeonjun also spent time training at Cube Entertainment. Although this period did not lead to debut, it gave him early exposure to structured practice environments and industry expectations. These experiences helped him adjust quickly once he entered Big Hit’s training system.

During his trainee years, Yeonjun appeared as a backup dancer at the 2014 Melon Music Awards. This appearance allowed him to perform on a large stage before debut and observe professional artists up close. Several years later, Big Hit released his short introduction film titled “What Do You Do?”. The video gained millions of views within days and introduced him to the public ahead of his group’s debut.

By the time his debut approached, Yeonjun was already known among fans as a highly skilled trainee. His training period laid the foundation for his later work as a performer and public figure.

Debut With Tomorrow X Together

Yeonjun’s debut period marked the first time his work reached a wide public audience. After years of preparation as a trainee, this stage placed him at the front of a newly announced group under a major entertainment company. The way he was introduced, along with his visibility from the start, drew early attention and set clear expectations for his activities within the group.

First Member Reveal and Public Attention

In January 2019, Big Hit Music announced the formation of a new boy group named Tomorrow X Together. Yeonjun was introduced first through an online video released on the company’s official channels. Being revealed before any other member placed early focus on him and created strong interest around the group before its debut.

The introduction video relied on visual performance rather than spoken lines. Viewers focused on movement, expression, and screen presence. The clip spread quickly across social platforms and fan communities, leading many people to follow future updates about the group. For many fans, this reveal became their first point of connection with Tomorrow X Together.

Official Debut and First Album

On March 4, 2019, Yeonjun officially debuted with Tomorrow X Together through the release of their first extended play, The Dream Chapter: Star. The album introduced the group’s music style through recorded tracks, music videos, and live stages. Yeonjun took part in all debut activities, including studio recordings, broadcast performances, interviews, and fan events.

During debut promotions, the group appeared regularly on music programs. These appearances required repeated performances over short periods. Yeonjun adjusted to this schedule while maintaining clear delivery during live stages. His prior training became visible through his control during choreography and his ability to stay composed during broadcasts.

Performance Placement and Group Dynamics

Throughout early promotions, Yeonjun often appeared near the center of group formations. His placement helped guide transitions between sections of each performance, especially during dance-focused moments. His movements supported group timing and spacing, which helped performances remain clear and coordinated.

Working within a five-member group required close coordination. Yeonjun adapted to shared stage space while maintaining consistent movement and expression. His awareness of other members during performances supported smooth group presentation across different venues and broadcasts.

Early Promotions and Audience Response

As promotions continued, Tomorrow X Together performed at fan meetings, showcase events, and concerts. These appearances allowed Yeonjun to interact directly with fans and gain experience speaking in public settings. International schedules followed soon after, introducing the group to audiences outside South Korea.

Yeonjun’s time living abroad helped him communicate more easily during overseas events. This supported interviews and fan interactions conducted in English, which helped the group connect with international audiences during their early activities.

Creative Involvement During Group Growth

After debut, Yeonjun began contributing to songwriting for group releases. This added another layer to his work beyond performance. Through lyric writing and composition participation, he took part in shaping the group’s musical direction over time.

This period established Yeonjun as both a performer and a creative contributor within Tomorrow X Together. His debut activities introduced him to a global audience and laid the groundwork for later work across music, media appearances, and solo projects.

Creative Involvement During Group Growth

As the group released more music, Yeonjun took part in songwriting for several tracks. He contributed lyrics and ideas that reflected his personal input within group releases. This involvement added depth to his work beyond performance alone.

The debut phase established Yeonjun as a visible performer and active creative contributor. These early activities introduced him to a global audience and prepared him for later work across music releases, media appearances, and solo projects.

Media Appearances and Fashion Work

As Yeonjun’s public activities increased, his schedule expanded beyond music releases and live stages. Television appearances, hosting work, and fashion projects became a regular part of his professional life. These areas allowed him to show different sides of his work while staying closely linked to performance and public presentation.

Television Appearances and Hosting Work

Yeonjun made a brief acting appearance in the drama Live On in 2021. The cameo introduced him to scripted television and placed him in a new setting outside music stages. He later appeared in Resident Playbook in 2025, again through a short on-screen appearance.

Alongside acting, Yeonjun developed a strong presence as a television host. He became a regular host on Inkigayo, where he guided live broadcasts, introduced performers, and interacted with guests. Hosting required clear speaking, steady pacing, and comfort in front of cameras during live transmission. Through repeated episodes, he gained confidence handling unexpected moments and transitions.

Yeonjun also took part in year-end music events, including hosting duties at SBS Gayo Daejeon and its seasonal editions. These broadcasts placed him on large stages with wide viewership, where he handled introductions and live segments alongside other hosts. His continued presence across these events strengthened his recognition among general audiences.

Entry Into Fashion and Public Style Work

Yeonjun’s interest in fashion gained attention as he began attending fashion events and working with clothing brands. He took part in New York Fashion Week in 2021, walking for the South Korean label UL:KIN. This appearance introduced him to runway work and placed him in an international fashion setting.

Later, Yeonjun worked with the streetwear brand Privé Alliance, where he participated in creative planning and released a limited clothing collection. This project allowed him to take part in design discussions and promotional activities tied to fashion releases.

In May 2024, Yeonjun became a global brand ambassador for Moncler. This partnership placed him in campaigns and events connected to the luxury fashion industry. Through magazine features, photoshoots, and public appearances, he became a familiar figure within fashion media as well as music coverage.

Magazine Features and Visual Media

Yeonjun appeared in fashion and culture magazines across South Korea and overseas. These features included interviews, photo spreads, and cover appearances. Through these projects, he presented visual concepts that differed from stage performances while remaining focused on expression and presentation.

These activities supported his image beyond music promotions and introduced him to readers who followed fashion and culture rather than K-pop alone. His work across television and fashion added range to his public career while keeping performance at the center.

Solo Music and Independent Work

After several years of group activities, Yeonjun began exploring music outside of Tomorrow X Together. His early solo-related work appeared through soundtrack releases, which allowed him to record music under his own name while still working within larger projects.

In 2024, Yeonjun released the song “Boyfriend” for the soundtrack of the drama Cinderella at 2 AM. The track showed a softer musical approach compared to his group releases and focused on mood and emotional delivery. Listeners responded positively, and the song performed well on digital charts. This release marked an important step in presenting his individual musical direction.

Later that year, Yeonjun announced his official solo debut. He released the single “Ggum,” which leaned into hip-hop sounds and strong rhythm. The song highlighted his confidence as a solo performer and allowed him to control the stage alone. Shortly after release, “Ggum” earned Yeonjun his first solo music show win, marking a major milestone in his career.

In 2025, Yeonjun released his first solo extended play, No Labels: Part 01. The album included multiple tracks that reflected his personal input across lyrics and composition. Through this release, he presented a clearer picture of his musical interests and performance style as an individual artist. The album achieved strong chart results in South Korea, Japan, and international markets.

Public Image and Recognition

Yeonjun has built a strong presence through consistent work across music, television, and fashion. Media outlets and fans often refer to him as a leading figure among fourth-generation K-pop artists. His name appears regularly in brand reputation rankings, which track public interest through searches, media coverage, and online activity.

Fashion magazines in South Korea, Japan, and the United States have featured him in editorials and cover stories. These appearances present him in settings different from music stages, focusing on visual expression and styling. Through this exposure, Yeonjun has reached audiences who follow fashion and culture alongside music.

His recognition also extends to award ceremonies. Yeonjun has received nominations and wins tied to dance performance, global popularity, and soundtrack work. These honors reflect steady attention from both industry groups and the general public as his activities continue to expand.

Philanthropy

In May 2024, Yeonjun donated fifty million won to the Hallym Burn Foundation. The organization provides support and medical care for firefighters who suffer injuries while on duty. His donation contributed to treatment costs and recovery support for those affected.

Yeonjun has kept his charitable actions low-key, without frequent public statements. His contribution shows awareness of social responsibility and a willingness to support causes connected to public safety and community care.

Conclusion

Yeonjun’s career shows a clear progression from trainee to group performer and later to solo artist. Each stage of his work reflects continued effort, learning, and public engagement. His activities across music, hosting, acting appearances, and fashion present a broad professional profile built through consistent participation rather than short-term attention.

As he continues releasing music and taking part in public projects, Yeonjun remains active across multiple areas of entertainment. His work so far points to ongoing development as an artist with the ability to move between group activities and independent releases while maintaining a strong public presence.