Monster Mob is a hard-rock outfit with instrumental influences that mix metal and old-school punk. The lyrical themes of the songs have roots in science fiction, comics and horror films. The band burst onto the Duluth music scene in early 2015 and that fall released its debut album, American Grindhouse. Along the way, there have been various singles, cassette releases and EPs, including the 10-track Return of the Creature in 2016. The current lineup features Cory Jezierski on vocals, Mark Swanson on bass, Garett Schroeder on guitar and Amy Ugstad on drums.