Bonded by Blood is the debut studio album by American thrash metal band Exodus. Although the album was completed in the summer of 1984, it was not released until 1985 due to issues with Exodus and the record label. It is considered one of the most influential thrash metal albums of all time. This is also the only full-length studio album of Exodus to feature Paul Baloff on vocals, though he was also on their 1982 Demo and appeared on their 1997 live album Another Lesson in Violence.