Karin Elisabeth Dreijer is a Swedish singer-songwriter and record producer. Dreijer was one half of the electronic music duo the Knife, formed with their brother Olof Dreijer. Dreijer released their debut solo album under the alias Fever Ray in January 2009. Their second studio album, Plunge, under the same alias, was released in October 2017.

The Knife were a Swedish electronic music duo from Gothenburg, formed in 1999. The group consisted of siblings Karin and Olof Dreijer, who together also run their own record company, Rabid Records. They gained a large international following in response to their 2003 album Deep Cuts.