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.
At a voluntary arbitration at the Seoul Central District Court, SM Entertainment finally agreed that its contract ended 31 July 2009, and that it would no longer interfere with JYJ’s endeavors in Korea.
Throughout his career as TVXQ's member, Kim had written and composed several songs that have appeared on the group's Korean and Japanese releases. At TVXQ's second Asian tour, he performed a solo self-composed dance track called "My Page".
Anyband has only released one single of the same name.
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.
He had released four Korean albums, four Japanese albums, thirty Japanese singles and several Korean singles during his first six years in the music industry as TVXQ.
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.
He graduated high school along with fellow member Park Yoochun in 2007.
Kim Junsu then took up Musical Theater in Myongji University and graduated in 2011.