f(x) (에프엑스) KOREAN f(x) (에프엑스) – Glitter Glitter 4 Walls – The 4th Album2015.10.27 Victoria, Amber, Luna, Krystal Lyrics/작사: 이스란Composer/작곡: Andreas Oberg, Maria MarcusArranger/편곡: Andreas Oberg, Maria…