Blood In, Blood Out is the tenth studio album by the American thrash metal band Exodus. It was released on October 14, 2014 through Nuclear Blast, and is the band's first album with vocalist Steve "Zetro" Souza since 2004's Tempo of the Damned. The album also saw a reunion with original guitarist Kirk Hammett, who plays the guitar solo on "Salt the Wound". Blood In, Blood Out received generally favorable critical reviews, and it entered the Billboard 200 at number 38—the band's highest U.S. chart position to date. Exodus promoted the album with its first concert tour with Souza since he left the band in 2004, due to a feud with guitarist Gary Holt.