Gil Seong-joon

Gil Seong-joon (Korean: 길성준), better known as Gill (길), is a South Korean singer, songwriter, record producer, restaurateur, and television personality. As the main vocalist of the hip-hop duo Leessang, he crafted some of the most memorable melodies in Korean hip-hop. His voice, both powerful and tender, became the emotional core of hits like “Ballerino” and “Turned off the TV...”.

Beyond music, Gil earned widespread love as a regular cast member of the long-running variety show Infinite Challenge, where his humorous chemistry with Yoo Jae-suk and the rest of the cast made him a household name. He also served as a coach on Voice of Korea and later produced for Show Me The Money 5.

After a hiatus triggered by a DUI incident in 2014, Gil has returned to public life, now connecting with fans as a YouTuber. His journey of redemption and his enduring musical legacy continue to resonate with audiences who grew up with his songs. [edit]

Gil Seong-joon was born on December 24, 1977, in Seoul. Growing up in the capital, he was drawn to hip-hop at a young age. In 1997, he began his career in the music industry, initially as a member of the underground hip-hop groups X-TEEN and HONEY FAMILY. These early collectives helped him hone his skills and build a reputation in the Korean hip-hop scene.

Even before Leessang, Gil was known for his exceptional ability to create addictive, powerful melodies, a talent that would later define his career. His melodic sensibility set him apart from many of his peers, who focused more on rapping. This skill would become his signature.

By the early 2000s, Gil’s path crossed with Kang Gary, and the two began collaborating. Their partnership would soon evolve into one of the most successful hip-hop duos in South Korea. [edit]

Gil’s breakthrough came with the formation of Leessang alongside Gary. The duo released their debut album in 2002 and quickly became known for their melodic hip-hop sound, blending Gary’s raps with Gil’s powerful vocals. Songs like “Leessang Blues” and “Girl Who Can’t Break Up, Boy Who Can’t Leave” became anthems, and the duo won multiple awards, including several at the Mnet Asian Music Awards.

In 2009, Gil joined the variety show Infinite Challenge as a guest, and his chemistry with the cast made him a regular co-host. He also co-hosted Come to Play, another major MBC program. In 2012, he became a coach on Voice of Korea, returning for a second season.

His career took a hit in April 2014 when he was caught for a DUI, his third offense, and he resigned from all public activities. He returned in 2016 as a producer for Show Me The Money 5. In 2017, Leessang officially ended group activities, and both members launched their own labels.

After years of preparation, Gil announced his comeback in November 2024, and by December he had launched a YouTube channel, reconnecting with fans. The move sparked rumors of a Leessang reunion, though nothing has been confirmed. [edit]

Gil’s public image has two distinct phases. In his heyday, he was beloved as a hip-hop artist and variety show personality, known for his warm humor and melodic genius. His musical reputation rests on his ability to craft catchy, emotionally resonant melodies, widely regarded as among the best in Korean hip-hop. After his DUI incidents, the media portrayed him as a talented but flawed figure. His return as a YouTuber represents a new chapter, allowing him to reconnect with fans on his own terms. [edit]

Gil Seong-joon, known professionally as Gill, remains a defining figure in South Korean entertainment history, bridging the gap between underground hip-hop and mainstream variety television. His career trajectory is unique; while he never secured a formal fandom name distinct from his group Leessang, his personal brand cultivated a loyal following through organic support rather than structured campaigns. Unlike modern idol groups with organized fan armies funding subway ads or birthday billboards, Gill's audience grew through his charismatic presence on Infinite Challenge and his melodic contributions to hits like "Ballerino." The cultural narrative surrounding him shifted dramatically after legal controversies, yet his return to digital media via YouTube in 2025 reinvigorated interest without relying on traditional fan mobilization. Regarding his global standing, iFANN has evaluated Gil Seong-joon extensively. As of August 2026, the Global Fame Engine has determined that he does not currently hold a placement in the published rankings, including the Global Top 1,000 or any scope-specific lists. This status reflects a complex legacy where past fame coexists with periods of hiatus and public scrutiny. While he was once a household name whose chemistry with Yoo Jae-suk defined an era of variety shows, current metrics indicate a shift away from top-tier global visibility. His influence persists through his catalog and recent viral moments, such as the promise to grow out his hair after decades of baldness, but these do not translate into a ranked position within the current global hierarchy.[edit]

Gil Seong-joon has been active in the music industry since 1997, establishing himself as a veteran of the Korean hip-hop scene before joining Leessang. He previously performed with the groups X-TEEN and HONEY FAMILY and holds professional roles as a restaurateur and music promoter. In 2020, he appeared on television with his son, marking one of his first public appearances after his DUI hiatus. His return as a YouTuber in late 2024 represented a significant shift in how he engages with fans. A defining moment in his public mythology occurred in February 2020 when it was revealed he had secretly married three years prior, shocking fans who had followed his solo career closely. Another legendary chapter involves his tenure on Infinite Challenge, where he transformed from a guest rapper into a regular cast member known for holding his own against seasoned comedians. More recently, a viral story emerged in June 2025 when Gil, at age 47, promised to grow his hair after debuting with a bald look, symbolizing a break from his long-standing visual identity. Fans also frequently discuss his denial of a feud with former partner Gary in April 2025, clarifying that their split was not born of personal animosity.[edit]

Gil is married and has a son. In May 2020, he appeared on television alongside his son, a rare public moment that highlighted his role as a father. Details about his wife and their wedding date are not widely publicized, as Gil has kept his family life relatively private. [edit]

Gil is closely associated with his Leessang partner Kang Gary, with whom he created some of Korean hip-hop’s most beloved songs. He also shares a long history with Yoo Jae-suk from their time on Infinite Challenge, and his comeback announcement mentioned Yoo Jae-suk, sparking speculation about a reunion. He worked with producers and artists in the Korean hip-hop scene, including Tablo and Mithra Jin of Epik High. [edit]

Gil married his wife sometime in the 2000s, and they have a son. The couple has kept their relationship largely out of the spotlight. In May 2020, Gil appeared on television with his son, a rare public moment that highlighted his family life. As of 2026, Gil remains married, and there is no indication of any separation or divorce. [edit]

iFANN currently estimates Gil Seong-joon's net worth at $10 Million as of 2026. This financial standing stems from a diverse portfolio built over nearly three decades. As a core member of Leessang, he accumulated wealth through album sales, concert tours, and enduring royalty streams. His extensive television work provided steady income, particularly during his long run on Infinite Challenge and his coaching role on Voice of Korea. Additional revenue flowed from his production work on Show Me The Money 5 and profits generated by his restaurant business. In recent years, his YouTube channel has introduced a new revenue stream, allowing him to monetize his direct engagement with audiences. While exact figures remain private, his sustained career activities across multiple industries suggest a comfortable and stable financial position.[edit]