Kim Hyung-jun

Kim Hyung-jun (Korean: 김형준; born August 3, 1987) is a South Korean entertainer, lead rapper, and the youngest member of the boy group SS501 and its subunit SS301. He is also a solo artist, actor, and musical theatre performer. As of 2026, he remains active across music, acting, and variety shows, with a dedicated international fanbase.

Known for his versatile talents, Hyung-jun has released solo music, starred in television dramas, and appeared on variety programs. His career spans over two decades, and he continues to engage fans through social media and live performances. [edit]

Born and raised in Seoul, Kim Hyung-jun trained under DSP Media before debuting. He holds a four-year university degree, a notable achievement in the K-pop industry. His early years were marked by rigorous training in singing and dancing, preparing him for his eventual debut.

In June 2005, he made his debut as the lead vocalist and rapper of SS501, quickly gaining attention for his stage presence and youthful energy. As the maknae, he brought a fresh dynamic to the group, which became a key part of the Korean Wave. [edit]

After SS501's initial success, Kim Hyung-jun expanded his career. In 2010, he left DSP Media and joined S-Plus Entertainment as a solo artist. His solo debut came in March 2011 with the mini album My Girl, followed by his musical theatre debut in Caffeine.

In 2012, he landed his first main lead role as Kang-min in KBS's My Shining Girl, and later that year appeared in SBS Plus's Late Blossom as Jung Min-chae, earning the Rising Star Award at the K-Drama Star Awards. He continued acting in dramas like Melody of Love and I Summon You, Gold! in 2013.

His solo music career continued with singles like Catch The Wave in 2019 and Miracle Maker in 2022. In 2025–2026, he participated in SS501's 20th anniversary concert in Japan, celebrating the group's enduring legacy. [edit]

Kim Hyung-jun is perceived as a multi-talented entertainer, seamlessly moving between singing, rapping, acting, and musical theatre. His public persona is approachable and playful, often using social media to connect with fans. He shares glimpses of his daily life, including golf and travel, which endears him to followers. His fashion sense blends casual and polished styles, often seen in tailored suits on stage and relaxed golf wear off duty. [edit]

Kim Hyung-jun navigates a decades-spanning career that began as the youngest rapper of SS501 and evolved into a multifaceted solo artist, actor, and musical theatre performer. His fanbase, known globally as FAN SIDE, has historically demonstrated intense loyalty and organizational prowess, driving the group's massive success across Asia through coordinated streaming campaigns, chart manipulation efforts, and substantial financial contributions for birthday billboards. These supporters have been instrumental in his transition from a shy maknae to a confident entrepreneur, funding promotional materials for dramas like Melody of Love and I Summon You, Gold! while organizing charity drives in his name. A defining moment occurred in 2026 when he revealed his real estate portfolio on Lovers of Joseon, sparking viral discussions about his financial independence and shifting his public image toward that of a successful businessman. The narrative surrounding him blends verified milestones, such as the 2025 reunion under the name Five O One and the 2016 military service announcement, with enduring folklore about the chaotic street shutdowns caused by SS501 concerts in the late 2000s. Despite his long tenure in the industry and a dedicated following, Kim Hyung-jun does not currently hold a placement in iFANN's published rankings, as his status is evaluated but unranked.[edit]

Kim Hyung-jun is an avid golfer who frequently shares his outings from Jeju Island on Instagram, where his handle features a playful rabbit emoji. He owns residential properties in Seoul, Tokyo, and Jeju Island, a fact that became a major talking point after a 2026 television appearance revealed his extensive real estate holdings. Despite his fame, he holds a university degree, a distinction rare among idols, and his blood type is O. Beyond these facts, legends persist regarding his role in SS501's historic rise, where crowd reactions were so intense they reportedly shut down streets and required police intervention in Japan and China during 2007-2008. Fans still retell the story of his 2016 military service, which shifted from a potential police force assignment to mandatory active duty, marking a somber farewell to his pre-service era. Another iconic chapter involves the 2025 reunion of SS501 members as 'Five O One' for their 20th anniversary, culminating in the December 2025 release of a music video for Last Christmas, signaling a full-circle moment for the fandom.[edit]

Details about Kim Hyung-jun's family are not widely public. He has not shared information about his parents or siblings. As of 2026, he is not married and has no known children. He lives across his homes in Seoul, Tokyo, and Jeju, often spending time in Jeju for golf. [edit]

Kim Hyung-jun is closely associated with his fellow SS501 members, with whom he shares a long history. He was managed by DSP Media during his group years and later by S-Plus Entertainment for his solo career. His current agency is CI Entertainment. [edit]

As of 2026, Kim Hyung-jun is reportedly single with no public romantic relationships confirmed. He has kept his personal life private, with no known dating history in credible sources. He is not married and has no children. [edit]

iFANN currently estimates Kim Hyung-jun's net worth at $5 Million as of 2026, reflecting a two-decade trajectory in the entertainment industry. This figure represents a calculated editorial assessment of his accumulated assets and earnings rather than a disclosed official total. His wealth originates from diverse streams including album sales, concert tours, acting fees, and brand endorsements accumulated since his debut. In recent years, revenue has also flowed from appearances on variety programs and strategic social media partnerships. The ownership of homes in Seoul, Tokyo, and Jeju Island further indicates substantial real estate investment alongside his professional income. As he remains active across music, acting, and variety shows, his financial standing underscores a successful evolution from a rookie idol to a self-sustaining entertainer with significant global reach.[edit]

Kim Hyung-jun won the Rising Star Award at the 2012 K-Drama Star Awards for his role in Late Blossom. This recognition highlighted his acting potential and marked a significant milestone in his solo career. [edit]