He officially debuted as part of Shinhwa on March 24, 1998 with a performance of their first single "해결사" (The Solver) on KM Music Tank.Since then, he has released ten Korean and one Japanese studio albums with Shinhwa.Shin debuted as a solo artist in 2005 with the release of his solo album entitled Love of May (오월지련, 五月之戀) in 2005.
In June 2011, after releasing his fifth Korean studio album, The Road Not Taken, Shin wrapped up a series of performances in Seoul, Busan, and Shanghai.
He also hosted a special two-day, 2011 Tour in Seoul - The Road Not Taken Act II, at Kyung Hee University on September 3 and 4.
In March 2012, Shin reunited with his Shinhwa band mates for their comeback after four years, under the management of 'Shinhwa Company'.
It is a joint venture agency for members to perform as a group, of which Eric and Lee Min-woo are co-CEOs and the remaining members are shareholders.
The Company manages the group as a whole, whilst members' individual activities are managed by their respective agencies.
On March 25, during the encore performance of the 2012 Shinhwa Grand Tour in Seoul: The Return, Shin injured his knee. ", he was shot up on stage but did not land safely.He ruptured his cruciate ligament and severely damaged the cartilage and ligament surrounding the meniscus, requiring surgery and six months of rest.Shin released his second album, entitled The Beginning, New Days on August 8, 2007.His song, "First Person", was #1 on the K-pop Top 10 chart.His album sold 30,000 copies on its first day of release and 50,000 copies in a week.He has since released five Korean and two Japanese studio albums.