| Masshysteri | |
| Origin: | Umeå, Sweden |
| Genre: | Punk rock |
| Years Active: | – |
| Label: | Ny Våg |
| Associated Acts: | The Vicious The (International) Noise Conspiracy INVSN |
| Current Members: | Robert (Hurula) Pettersson Sara Almgren Kajsa Bergsten Erik Viklund |
Masshysteri (English: '''Mass hysteria''') was a Swedish Post-Punk band, formed in Umeå in 2008.[1] The group consisted of Robert Pettersson (rhythm guitar, vocals), Sara Almgren (bass guitar, vocals), Kajsa Bergsten (lead guitar) and Erik Viklund (drums)
Robert Pettersson, Erik Viklund and Sara Almgren previously played in the punk band The Vicious. The lyrics were English and they toured in the U.S. When The Vicious drummer André Sandström left the band, they had to find a stand-in. At the same point, they decided to write lyrics in Swedish. Erik took over the drums and Kajsa Bergsten joined the group on guitar. They released two 7"s and two full-length albums before they decided to disband. According to Dennis Lyxzén (their record company manager), internal problems between band members lead to the group breaking up.[2]