The main vocalist of Shinhwa, he debuted as a solo artist in 2005 and has since released multiple albums in both Korean and Japanese.

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.

This album ranked number one on the HMV pre-order sales chart in Japan in February 2005, with 180,000 copies sold.

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.

[3] The group released their tenth studio album The Return on March 23, 2012,[4][5] launched their comeback concerts 2012 Shinhwa Grand Tour: The Return throughout Asia[6][7] and their first exclusive variety program Shinhwa Broadcast premiered on March 17, 2012, on cable channel JTBC.

[8] On March 25, during the encore performance of the 2012 Shinhwa Grand Tour in Seoul: The Return, Shin injured his knee.

However, he has put off surgery, but has continued treatment through the end of promotional activities for Shinhwa's tenth studio album, The Return.

[19] Shin Hyesung was initially sentenced to 1 year of probation for possession of a stolen vehicle and refusing a breathalyzer test.