Group JYJ's Kim Junsu has lent his voice for KBS 2TV's Wed-Thu drama 'Mandate of Heaven: The Fugitive of Chosun'.

On May 8, new OST for the drama 'Mandate of Heaven' recorded by JYJ's Junsu was revealed, heating up the viewers.

On May 9, Junsu's agency C-JeS Entertainment stated, "It's true that Kim Junsu recorded OST of 'Mandate of Heaven' and the song will be officially released on May 15 through Korea's major music websites. The song 'Foolish Heart' was originally going to be revealed during 7th episode, but it was released a bit earlier as the love story between Won (Lee Dong-Wook) and Da-In (Song Ji-Hyo) has developed."

Netizens who listened to the song commented, "His voice is really appealing. I like the song very much", "His voice is incredible", "The sad love scenes between Won and Da-In and the sad OST! I can't wait to watch the next episode", and more.

An official from the drama said, "As he is very talented singer, he was able to show a great expression in the song. We believe that the song will make the drama even more enjoyable and attract more people to the drama."

Kim Junsu said, "I'm a big fan of 'Mandate of Heaven'. I hope this song delivers the drama characters' feelings well. I tried to fully express the sad emotion of the lyrics."