In celebration of his official debut, Superstar K4’s winner Roy Kim held a surprise guerrilla concert at Namsan Tower on April 21, which was attended by about 4,000 cheering fans.

During the concert, Roy Kim performed a number of songs that have special meanings to him, including “Volcano”, “In Rain”, “Becoming Dust”, “I Need Healing”, “Whistle” and “Passing By”. He concluded the show by unveiling his debut single “Spring Spring Spring” for the first time before its official released on the 22nd.

An official of N Seoul Tower said, “A great number of people gathered in such a short time, and we could clearly see his great popularity. Many people showed great reactions for his performance.”