iKON KOREAN iKON – JERK (나쁜놈) 나쁜놈 nappeunnom “JERK” [Album] Return 2018.01.25 Jay, Song, Bobby, B.I, DK, Ju-ne, Chan Lyrics/작사: B.I, BOBBY Composer/작곡: B.I, 강욱진 Arranger/편곡: 강욱진