Masshysteri, a Swedish punk band formed in Umeå in 2007, consisted of Robert Pettersson on rhythm guitar and vocals, Sara Almgren on bass guitar and vocals, Kajsa Bergsten on lead guitar, and Erik Viklund on drums. Prior to Masshysteri, Pettersson, Viklund, and Almgren played together in the punk band The Vicious. After a change in lineup and a shift to writing lyrics in Swedish, they released their debut single "Paranoid" in April 2008, followed by "Monoton Tid." Their first album, Vår Del Av Stan, was released in 2008 under Ny Våg in Sweden. The band's second and final album, Masshysteri, was released in 2010. Internal conflicts led to the group disbanding later that year. Both albums were re-released posthumously on a single tape in 2013 by Crysis Records.
