Karin Elisabeth Dreijer (born 7 April 1975) 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. Dreijer's vocal style is notable for both shrill and deep tones, and also the use of multitracked vocals, with different uses of pitch-shifting technology on each track, creating an intricate and mysterious effect. Visually, they employ the use of masks, face and body paint, intricate costumes, and other theatrical elements in photo shoots, videos and live performances, during which they often perform behind a gauze screen that partially obscures the audience's view. Early life Dreijer was born on 7 April 1975 in Gothenburg, Sweden. They started playing guitar at the age of ten, which led to the founding of the band Honey Is Cool in 1994. Before pursuing a career in music, Dreijer worked as a web designer. In 1998, they moved to Stockholm. Career The Knife Karin and their brother Olof Dreijer formed the electronic music duo the Knife in Gothenburg in 1999. The Knife released their eponymous debut album in 2001. The duo gained a wider international recognition following the release of "Heartbeats", the lead single of their second studio album, Deep Cuts (2003). The duo performed live for the first time in 2006, when they went on the Silent Shout Tour in support of their third album of the same name (2006). In 2009, the duo were commissioned alongside Mt. Sims and Planningtorock by the Danish performance group Hotel Pro Forma to compose an opera, titled Tomorrow, in a Year, which is based on Charles Darwin's On the Origin of Species. In 2013, the band released their fourth and final studio album, Shaking the Habitual. The duo disbanded in November 2014, after completing the Shaking the Habitual Tour. Solo work While the Knife were on hiatus, Dreijer released, under the alias Fever Ray, their self-titled solo debut album. It was released digitally on 12 January 2009 and physically on 18 March 2009 through Rabid Records. The album was preceded by its lead single "If I Had a Heart" (2008), which was used in numerous television series, including Person of Interest, Breaking Bad and Wentworth, as well as the