Jag Panzer were a heavy metal/power metal band originally formed in Colorado in 1978 as Tyrant. The band consisted of Harry Conklin on vocals, Mark Briody on guitar, John Tetley on bass, and Rick Hilyard on drums. They later found out that there was already a band in existence by the name of Tyrant, so they named the band Jag Panzer after the Jagdpanzer, which was a German WWII tank destroyer and literally means "Hunting Tank". In 1983 their first recording, the EP known as "Tyrants".