Steve "Zetro" Souza (born March 24, 1964) is an American vocalist, best known for his work with the thrash metal band Exodus from 1986 to 1992, and again from 2002 to 2004. He rejoined Exodus for a third time in 2014. Souza is one of two singers, along with Chuck Billy, for the band Dublin Death Patrol. He also sings for the death/thrash metal band Tenet. Souza recently announced his new thrash metal project, Hatriot. He was also the lead singer for the thrash metal band Legacy (later known as Testament).