TVXQ In 2003, Park returned to South Korea after he was scouted by Brothers Entertainment. He was later signed as an artist by
S.M. Entertainment. From 2003 to 2009, Park performed as a member of the best-selling K-pop boy band
TVXQ. In July 2009, Park and two of his TVXQ bandmates,
Jaejoong and
Junsu, filed a lawsuit against their South Korean agency S.M. 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 have been extended and changed without their knowledge or consent and that the group's earnings were not fairly distributed to the members. After TVXQ's Japanese label announced a group hiatus in early 2010, they formed a new three-member group initially known as
JUNSU/JAEJOONG/YUCHUN in Japan. On November 28, 2012, the legal battle between JYJ and S.M. finally ended. Both sides agreed to retiring every judicial accusation against each other and not interfering in each other's actions.
JYJ In September 2010, JYJ released extended play
The..., which debuted at number one on Japan's
Oricon album charts. However, Avex had announced the suspension and when in Japan, the same month that year. JYJ proceeded to release
The Beginning, a global album which was sung in English.
JYJ promoted the new album via a worldwide showcase tour throughout October and November with dates in South Korea, Southeast Asia and the United States. On January 25, 2011,
JYJ released Korean extended play
Their Rooms "Our Story"." JYJ's second group album and first full-length Korean-language album
In Heaven was released September 28, 2011. Starting from April, Park toured Asia and North America for
JYJ's first Worldwide Tour. The tour was then extended to Europe and South America, adding another four stops in Spain, Germany, Chile and Peru.
Solo career Park is featured in "Tokyo Lovelight" from DJ Makai's mini-album,
Stars. He was also one of the featured rappers on the song "Heartquake", a track from
Super Junior's third album,
Sorry, Sorry. For
Miss Ripley, Park sang "너를 위한 빈자리 (The Empty Space for You)". It appeared in the ninth episode of the drama and was released on the
Miss Ripley OST (Part 3).
Songwriting Park has written and composed several songs that have appeared on TVXQ's Korean and Japanese albums. As a member of
SM Town, he contributed to the 2007 winter album
Only Love with his composition "Evergreen". Park also wrote and composed "사랑 안녕 사랑 (Love Bye Love)", featured on the group's fourth Korean studio album
Mirotic. For the Trick project, he wrote the lyrics to his solo "
My Girlfriend", entirely in English. "Kiss the Baby Sky", one of the
A-side's for TVXQ's
twenty-fifth Japanese single, marked the first time that one of the songs both written and composed by Park was released on a Japanese single. With TVXQ members
U-Know Yunho and
Xiah Junsu, Park wrote the rap lyrics to "Love After Love", which appeared on their second Korean studio album,
Rising Sun. For the group's Japanese releases, Park wrote and co-composed with
Hero Jaejoong (Kim Jaejoong) for
T, TVXQ's third Japanese album. In September 2009, he and
Hero Jaejoong (Kim Jaejoong) released a self-written duet, "
Colors (Melody and Harmony)/Shelter", which was used as the image song for
Hello Kitty's 35th anniversary. Park has also written songs for JYJ's albums. "I Love You", a track featured in JYJ's 2010 album
The Beginning, was penned by Park. In January 2011, Park was the lyricist/composer in JYJ's music essay called
Their Rooms "Our Story" for the song "이름없는 노래 Part 1 (A Song Without A Name, Part 1)". In addition, he also composed the rap in bandmate
Junsu's song, "Xiahtic". For
In Heaven, Park co-wrote "Get Out" with bandmate
Kim Jaejoong.
2018–2019: Japan activities and first studio album Park confirmed to hold a fan meeting and mini concert titled "Reunion: Remember the Memories" on March 10 and 11, 2018 as his first public appearance after being discharged as a public service worker. Park released his first studio album,
Slow Dance, on February 27, 2019. Park had his first solo concert in Seoul on March 2, 2019, called 'Slow Dance in Seoul'. Park's
Slow Dance concert tour in Japan began in March 2019. He announced his retirement from the entertainment industry in April 2019, following his arrest on suspicion of illegal drug use and the termination of his contract with his agency.
2020–present: Comeback and change in companies Park held a charity fanmeeting for the LOVE ASIA foundation in Bangkok, Thailand on January 25, 2020. On July 31, 2020, it was announced that Park was working on a new album, which would be followed by a fan signing and mini concert in Thailand. in cooperation with the label Re:Cielo and Yesperar which was granted exclusive management rights of the artist by Re:Cielo until July 2021. On August 18, 2021, it was reported in a Japanese news article that Park had signed with a new agency due to his former agency (Re:Cielo) having "barely paid" him during his two years with the company, and claimed the company had embezzled funds. In response, Re:Cielo announced that Park's statements were entirely false and that they were preparing a civil damages lawsuit against him due to his breach of contract and defamation of the company. On August 27, 2021, another agency Yespera Co., Ltd revealed that Re:Cielo signed an exclusive contract that grants Yespera exclusive management rights of Park Yoochun with permission from the artist. For this reason, they filed an injunction against his broadcast and entertainment activities stating there was no reason to terminate his contract. On November 10, 2021, Park was temporarily banned from appearing on TV and continuing any activities in the entertainment industry (unless the activities were with Yespera but no mention of Re:Cielo) by the Seoul Central District Court. In 2023, commemoration of the 20th anniversary of his debut, he held a fan meeting titled "Re.birth" from 9 to 10 November in Haneda and a dinner show titled "Rhythm -with one heart-" on 11 November in Yokohama. The prices of tickets to the events, 23,000 yen and 50,000 yen respectively, attracted criticism for their relative expense in comparison to popular K-pop groups' fan meetings. ==Acting career==