The new sing [all4one] of the tree tops which was the top of the single [paradise] Oricon chart of November, 2016 is released simultaneously in Korea and Japan.This song is the theme song of the tree tops of 2016 Tokyo performance [one for all, all for one] which was finished with a great success. It is a song which means go ahead when we rely on it together with piano ver. Of all4one.The lyricist Bae Hyung Moon wrote and composed the piano, played by keyboardist Jeon Yeong-ho.In particular, this song is a song for all the fans who love them, and it is more meaningful because it contains the gratitude for the fans who have supported for a long time.Also, since this digital single was released along with the video of all4one recorded on the Tokyo concert DVD, it will be a great memory for the fans in Korea as well.