Jeff Walker is best known as performing bass and vocal duties for influencial grindcore / death metal band Carcass. Aside from this, he also contributed artwork to Napalm Death's seminal album "Scum", ran a record label (Necrosis Records) and prior to joining Carcass played for a short time in Electro Hippies. Currently he has his own project "Jeff Walker Und Die Fluffers" and tours with the reformed Carcass.