Metallica's debut album, "Kill 'Em All", was originally intended to inherit the name of one of their earlier demo releases (predating Burton's participation), which was "Metal Up Your Ass", but the record company did not like the title and insisted on changing it. After the band learned of the change, Burton said "We should just kill 'em all, man," which gave the band members an idea for the new title. The album was released on July 25, 1983, through Megaforce Records.