SAIKI's Select Point:

It’s fun when we are on tour abroad, but I sometimes miss Japan. The same way that I sometimes miss the owner of the voice that I like. That owner of the voice is Jae Joong. His melodies are great and his voice is superb. This song gets the crowd going at his shows too, and I definitely recommend it. I used to listen to this song when I needed to cheer myself up or motivate myself.