グリーン is a four-member Japanese vocal group from Kōriyama city in Fukushima prefecture, made up of the members Hide, Navi, 92, and Soh. They made their debut with Universal Music in 2007. Their logo image is of a mouthful of teeth, and the four e's indicate the number of members. The sound production is handled by Hide's older brother JIN, a member of Pay Money To My Pain.