Shinhwa's Shin Hyesung finally released his first Japanese single, "I Believe", on October 5th! "I Believe" is a duet song that guest-features vocals from Japan's Kiyokiba Shunsuke, a former member of pop group, EXILE. Shunsuke also helped pen the lyrics to the song. The single, which includes the songs "I Believe" and "Forever". Shin Hyesung held a handshake event in different cities across Japan to celebrate his first single release. The handshake event is still on-going, but the singer hopes to promote his new single through radio appearances and interviews as well. To top it all off, Shin Hyesung will also hold a solo concert on October 16th at Tokyo Dome City Hall. Check out his duet song below: Source & Photo: Naver