The Japanese-language version was released as TVXQ's 31st Japanese single in Japan, and served as first single off their fifth Japanese studio album, "Tone" (2011).
The Japanese-language version of the song, which was released on January 26,2011 by Avex Trax, served as TVXQ's 31st Japanese single in Japan. It was the first single off their fifth Japanese studio album, "Tone" (2011).