Often compared stylistically to bands such as Tool, System of a Down, and Helmet, Cog are a progressive rock band from Sydney, Australia, with heavy metal leanings. The band was formed in 1998 by former schoolmates Flynn Gower (vocals, guitar) and Lucius Borich (drums), who had previously played together in the Hanging Tree, a late-'90s stoner rock band. Shortly after forming and writing some initial material, the two incorporated Luke Gower, the brother of Flynn, to play bass. Now a trio, Cog proceeded to establish themselves as a popular concert attraction in Sydney and the surrounding state of New South Wales, and following the release of a 2000 demo recording, Pseudo, they were soon signed by the independent label Little Samurai, resulting in a few EP releases: Just Visiting, Pt. 1 (2002), Just Visiting, Pt. 2 (2002), and Open Up (2003).