TNX Kyungjun Biography: Profile, Net Worth 2025, Career, And Military

Better known by his stage name Kyungjun, Woo Kyungjun is a South Korean-Australian singer, rapper, former member of the K-pop boy group TNX (The New Six). Kyungjun, who was born on August 30, 2002, in Cheongdam-dong, Gangnam-gu, Seoul, South Korea, became well-known as a gifted performer under P Nation after making her TNX debut 2022. From his survival program LOUD to his debut with TNX to his ultimate leaving from the group for military service, his path in the entertainment business demonstrates a special combination of drive, talent, and personal choice.

Early Life and Profile:

Born in 1998, Kyungjun came from a loving home comprising his parents and an older brother. Early on, he resided for ten years between South Korea and Australia, from age five to fifteen. His identity and abilities were formed by his foreign background, especially his English fluency, which he usually attributes as being a major component of his personality. Justin Woo, his English name, captures his time spent overseas attending Brisbane Boys' College in Australia before returning to South Korea and finishing his studies at Cheongdam Middle School and Apgujeong High School.
Kyungjun, who stands about 174 cm (5'9"), is well-known for his startling images, sometimes emphasized by his mismatched eyes, one with a double eyelid and the other without and various unique moles on his face. His ISFP MBTI personality type (scoring 100% introverted in one test) suggests that his introverted nature contrasts with his on-stage magnetism. Kyungjun likes simple pleasures like eating cereal without milk and hates vegetables and spicy food; his interests are skateboarding and cello playing.
Kyungjun dreamed of general surgery before diving into the K-pop scene. But his route changed drastically when he was street-cast by P Nation on his way back to Korea, which piqued his desire in being an idol.

Career Beginnings: From Trainee to LOUD:
Though specifics of Kyungjun's tenure there remain few, his path into the K-pop scene started as a trainee under Big Hit Entertainment (now HYBE). Later he joined P Nation, the agency Psy started, where he developed his singing, dancing, and rapping techniques. Early on, his talent and stunning look attracted notice and he was dubbed "Mr. Hot-Cold" throughout his trainee years because of his quiet but mesmerizing manner.
Kyungjun's career took a big turn in 2021 when he was shown on SBS's survival audition program LOUD, which ran from May to September. Working with P Nation and JYP Entertainment, the show sought to create two new boy groups. Kyungjun distinguished himself with his performances, which included a dance to Shawn Mendes and Justin Bieber's "Monster" and a delightful mimic of a weatherman with an Australian accent. His efforts paid off as he guaranteed his place in P Nation's inaugural group by ranking second in worldwide votes at the finale. Kyungjun's visuals and potential were appreciated by Psy, therefore securing his spot on the team.

Debut with TNX and Career Highlights:

Along with Taehun, Hyunsoo, Junhyeok, Hwi, and Sungjun with their first mini-album, Way Up, Kyungjun debuted as the oldest member of TNX (The New Six). Formed via LOUD, the group attracted notice right away for their unusual sound and strong performances. Leading single "MOVE" highlighted Kyungjun's stage presence and rap ability, which helped the album which sold more than 100,000 copies in South Korea to be successful.
Kyungjun took part in TNX's later releases, including their second EP, Love Never Dies (February 2023), with the title song "Love or Die,” and the non-album single "Fuego," (2024). Although Kyungjun's career with TNX would shortly come to an abrupt end, their popularity was raised even more by TNX's involvement in the 2024 Road to Kingdom.
Though Kyungjun made achievements, his tenure at TNX was rather brief. Originally a six-member group, early on it underwent adjustments when pre-debut member Koki Tanaka quit in January 2022 for age issues. The team would be further changed by Kyungjun's leaving in 2024.

Military Enlistment and Departure from TNX:

P Nation said on October 23, 2024 Kyungjun would be leaving TNX to join in required military service for South Korea. Fans were surprised by the choice since Kyungjun not only decided to join freely but also declared his intention not to come back to the team later. After protracted negotiations, P Nation and Kyungjun decided to end his exclusive deal with effective October 23, 2024. TNX will remain a five-member group including Taehun, Hyunsoo, Junhyeok, Hwi, and Sungjun, the agency said.
Given most idols wait until closer to the age limit of 28, Kyungjun's decision to enlist at the age of 22 (international age) and abandon his idol career baffled many. Though he acknowledged he kept his Korean citizenship, so qualifying him for service, his dual South Korean-Australian heritage also spurred rumors concerning citizenship. Fans sent conflicting feelings disappointment at his leaving but support for his own choice flooding social media with wishes for him well.
Kyungjun is presumably in the military as of March 19, 2025; depending on his designated function, his duty is likely to last between eighteen and twenty-one months. This puts his discharge between mid-to-late 2026, hence his future is still unknown.

2025's Net Worth:

With Kyungjun's early career stage and departure from TNX, estimating his net worth as of 2025 calls some conjecture. His revenue came mostly from music sales, performances, and possible sponsors during his active years with the group (2022–2024). With over 100,000 copies sold and streaming figures reaching millions, TNX's Way Up points to a modest but rising income stream for the group, usually divided among members following agency deductions.
Early years for rookie idols under a mid-tier agency like P Nation can range from $50,000 to $150,000 USD depending on group performance and activities. Though no specific deals are known, Kyungjun's own endeavors such as sponsorships with Pepsi, Nike, or Samsung as reported could have added to his income. His brief career as an idol, spanning just over two years, most certainly places his net worth in 2024 between $100,000 and $200,000 USD.
Kyungjun no longer works in the entertainment business and is serving in the military (where troops receive a meager stipend of around $500–$800 USD monthly), hence his net worth is probably not much changed as of 2025. Factoring residual profits from TNX's songs and any savings from his idol days, a reasonable projection for 2025 would be roughly $150,000 to $250,000 USD. After military, his financial career will rely on whether he goes back into entertainment or chooses another route.

Legacy and Future Prospects:

With Kyungjun leaving TNX, a bright but fleeting chapter in his K-pop career closes. Fans recall him for his quiet elegance, multilingualism, and early group success contributions. His choice to give military service first priority and distance from idol life suggests a change in personal objectives, maybe reflecting his former aim of being a surgeon or investigating other career paths outside entertainment.

When he finishes his service by 2026, rumors swirl regarding his future direction. Using his English fluency and international appeal, will he once more take the stage, maybe as a solo artist or actor? Alternatively will he veer completely from his idol days behind? Kyungjun is still much-loved among THX (TNX), who keep supporting him through this change.