Background and career
Kim Jun-su (Korean: 김준수; born December 15, 1986), known mononymously as Junsu or by the stage name XIA ( SHEE-ah; 시아), is a South Korean singer-songwriter and musical actor. He is a former member of JYJ, and was one of the original members of TVXQ, during which time he was known by the stage name Xiah Junsu (시아준수). Kim made his debut in 2003 as a member of TVXQ, a boy band produced and formed by South Korean record label and talent agency SM Entertainment, having previously been a trainee for six years. During his time in TVXQ, the group released four Korean albums, four Japanese albums, thirty Japanese singles and several Korean singles. In 2009, Kim and fellow TVXQ members Kim Jaejoong and Park Yoochun filed a lawsuit against SM Entertainment, arguing that their exclusive contracts were unilaterally disadvantageous towards the artists and should be invalidated. The Seoul Central District Court ruled in favor of the three and granted an injunction suspending their contracts. The trio reunited and subsequently formed JYJ in 2010. JYJ has since released one English album, two Korean albums, one Japanese EP, and one Korean EP. Kim began his solo career in 2010 with the release of the Japanese EP Xiah, which peaked at number two on Japan's Oricon Singles Chart. Later that year, he made his musical debut in the role of Wolfgang in Mozart!, receiving critical acclaim and commercial success. In May 2012, he made his solo debut in South Korea with the studio album Tarantallegra and embarked on his first headlining world tour. Despite limitations in media coverage and promotional activities caused by a ban in the Entertainment Departments of South Korea's three main terrestrial broadcasters resulting from SM Entertainment's interference, Kim's first and second studio albums reached the top two on South Korea's Gaon Album Chart, as well as reaching number-ten and number-five on the Billboard World Albums chart for Tarantallegra and Incredible, respectively. He is also known for being able to sell out tickets for his concerts and musicals within minutes, dubbed "the ticket power" by South Korean media. In November 2021, Kim formed his own agency, Palm Tree Island, with him as CEO.
Kim was born and raised in Goyang, Gyeonggi Province, South Korea. He has a fraternal twin brother named Kim Junho, who is also a singer and actor. He attended Neunggok Elementary School, Nunggok Middle School, Hwasu High School and then transferred to Hanam High School. In 2005, Kim enrolled in Myongji University, where he studied musical theater.
At age eleven, Kim was signed by SM Entertainment after his participation in the agency's 6th Annual Starlight Casting System. In 2002, SM Entertainment placed Junsu in a project R&B group with two other trainees, his childhood friend Eunhyuk and Sungmin. They appeared on a show called "2002 Survival Audition – Heejun vs. Kangta, Battle of the Century", along with three future members of rock band TRAX (Jay Kim, No Minwoo, Kang Jungwoo). They were judged and mentored by Moon Hee Jun and Kangta, two members of H.O.T, SM Entertainment's former group. Kangta praised Kim highly in the show, saying that he had potential as a lead vocalist. The group disbanded in 2003 (both Eunhyuk and Sungmin went on to debut as Super Junior's members two years later), when Kim was selected to be TVXQ's member.
Kim was the first member to join TVXQ and officially debuted with the group on December 26, 2003. He chose Xiah to be his stage name, explaining that the name was short for "Asia" (taking out the "a" in "Asia"). "Xiah" would be an implication of his desire to become not only a star in Korea, but also a star recognized all throughout Asia. In 2006, Kim featured in former label-mate Zhang Liyin's debut song, "Timeless". It is a remake of Kelly Clarkson and Justin Guarini's duet, originally recorded in 2003. He also made an appearance in the second part of "Timeless"' music video. In 2007, he was chosen to be part of Samsung's Anycall project group, Anyband. The band comprises former label-mate female singer BoA, Tablo of South Korean hip-hop group Epik High and jazz pianist Jin Bora. Anyband has only released one single of the same name. On July 31, 2009, Kim and other two TVXQ members—Jaejoong and Yoochun—submitted an application to the Seoul Central District Court to determine the validity of their contract with SM Entertainment. Through their lawyers, the members stated that the 13-year contract was excessively long, schedules were held out without the confirmation or permission of the members, contract terms had been extended and changed without their knowledge or consent and that the group's earnings were not fairly distributed to the members. The Seoul Central District Court granted the three members a temporary contract injunction in October 2009 and ruled that SM cannot interfere with their individual activities but also that they can only act as members of TVXQ through SM Entertainment. Throughout his career as TVXQ's member, Kim had written and composed several songs that appeared on the group's Korean and Japanese releases. His first composition was a ballad titled "Nae Gyeote Sumsuil Su Ittdamyeon (White Lie)" (네 곁에 숨쉴 수 있다면), included in TVXQ's third Korean studio album, "O"-Jung.Ban.Hap. At TVXQ's second Asian tour, he performed a solo self-composed dance track called "My Page". He also composed his solo slow-ballad "Rainy Night" of TVXQ's nineteenth Japanese single, If.../Rainy Night, an installment of the group's non-album release "TRICK" project. For TVXQ's Korean comeback in 2008, he wrote "Noeur... Baraboda (Picture of You)" (노을 ... 바라보다), which was featured in TVXQ's fourth Korean album. During TVXQ's third Asian tour, he performed another self-composed song "Xiahtic", which was then rearranged and performed in Japanese for his solo performance at the Tohoshinki 4th Live Tour 2009: The Secret Code in Tokyo Dome. The rearranged version of "Xiahtic" was also included in TVXQ's twenty-ninth Japanese single. He has also appeared on two televised shows with TVXQ, Banjun Theater and Vacation.
At the beginning of 2010, Kim starred in the South Korean production of Austrian musical Mozart!, playing the lead role Wolfgang. His stage actor debut was met with great response, as the tickets for each one of his shows were completely sold out and he was able to sweep up all Best Newcomer awards in various awards ceremonies. In April, 2010, the three-member group JYJ (initially known as Junsu/Jaejoong/Yoochun) was created, following an announcement made by Avex Trax, the trio's Japanese label at that time. After Avex revealed that TVXQ would go on an indefinite hiatus, it's decided that Kim would make his solo singing debut in Japan. A teaser showing his self-composed song "Intoxication" was made public and announced as the lead track of his upcoming single. The self-produced double A-side single (Refer Xiah) was released on May 26 and debuted at number two on Japan's Oricon chart. Two songs in the single, "Kanashimi no Yukue" (悲しみのゆくえ, The Whereabouts of Sadness) and "君がいれば ～Beautiful Love～" were used as the theme song for BeeTV's 5nen Atono Love Letter (５年後のラブレター, A Love Letter 5 Years From Now) and <Beautiful Love ～君がいれば～>. In September, JYJ released The..., their first Japanese EP, which debuted at number one on the Oricon chart. However, Avex had announced the suspension of the group's activities in Japan, including Kim's, the same month that year. JYJ proceeded to release The Beginning, a global album which was sung in English. Kim promoted the new album with JYJ via a worldwide showcase tour with dates in South Korea, Southeast Asia and the United States. In October, Kim was set to collaborate with Hungarian composer Sylvester Levay for a concert titled "Kim Junsu Musical Concert, Levay with Friends". It was held in Seoul at the Olympic Gymnastics Arena from the 7th until the 10th for a total of 4 days. Well-known German musical actor Uwe Kröger who worked with Levay in several musicals visited South Korea to participate in the concert as a special guest. During the show, Kim introduced "Miss You So", a song that was written especially for him by Levay, to the fans. He also performed "Intoxication" before Korean audience for the first time outside Japan.
In January 2011, JYJ released their EP, Their Rooms "Our Story", which Kim contributed in writing and composing two songs in the album, an up-tempo track titled "Mission" and a ballad titled "Fallen Leaves". The next month, he starred in his second musical, "Tears of Heaven". Kim played Jun-Hyung, a Korean soldier who fell in love with a Vietnamese singer during the Vietnam war. In May 2011, Kim was appointed the honorary ambassador for the 5th The Musical Awards, along with musical actress Jo Jung Eun. He's also nominated for "Best Actor" and later won the "Popular Star Award" at the same award ceremony. In August, Kim released a song for Korean drama Scent of A Woman's OST, "You Are So Beautiful". The song managed to top real-time music charts shortly after it was released. He also made a cameo appearance in the drama as a popular singer that the main character idolizes and looks up to. In September, JYJ released their first Korean full-length album, In Heaven. Kim and actress Song Ji-hyo featured in the six minutes long music video for the album's lead track, "In Heaven". A 10-minutes version was released later on, revealing the complete story line. In November, Kim won the "Popular Star Award" at the 17th Korea Musical Awards alongside "Tears of Heaven" co-star Yoon Gong Joo. In December, he and South Korean actor Jang Geun-Suk received a K-POP Superstar Award at the "2011 Asia Jewelry Awards" held in Seoul.
Sources
Net-worth figure: Celebrity Net Worth (October 2026), in USD. Biography and career facts: the person's Wikipedia article and linked reporting. Snapshot date for all StarWorth figures: 28 October 2026.
