Singer and actor Park Yoochun will be releasing a new surprise single at the upcoming '2013 JYJ Concert in Tokyo dome-The return of the JYJ', which will be held from April 2-4.

On April 1, JYJ's management agency C-JeS Entertainment stated, "Park Yoochun will be releasing a self-written track at the upcoming concert. Unlike other members, who have released solo albums last year and this year, Park Yoochun has been active with drama activities so he decided to release a surprise track for his fans at the upcoming dome concert. It will be a nice gift for his fans who are waiting for the concert."

The title of the new single is 'I Walk Through Spring with Her', which is in the Britpop genre. The song carefully expresses the fluttery emotions of a man who has just fallen in love.

Park said, "I'll be meeting Japanese fans at the dome after a long time. There were difficulties during the long wait but in the end, we've come to meet again smiling, and I wanted to give my song as a present to express the fluttery feelings of meeting again and having a new start. I made the lyrics and melody with emotions that come with new season, and awakening spring."