There are two artists sharing the name BLACK LINE. 1. BLACK LINE is a visual kei rock band from Tokyo, Japan who began activities in 2011. 2. BLACK LINE is an IDM band from Los Angeles formed in 2017 by songwriter and front-man Douglas J McCarthy (Nitzer Ebb), producers Zack Meyers and Cyrus Rex, mix engineer Ken"hiwatt" Marshall (Skinny Puppy), and Bon Harris (Nitzer Ebb). 1) BLACK LINE (Japan): Bassist Tomoki departed the band on May 12, 2011 due to his serious tenosynovitis.