Kjetil Tvedte Grutle, better known as Grutle Kjellson, is a Norwegian musician, best known as the bassist and vocalist of the Norwegian extreme metal band Enslaved. Kjellson and guitarist Ivar Bjørnson are the founding and only constant members of the band, as well as the main songwriters. He has released sixteen studio albums with Enslaved and won five Norwegian Spellemann Awards with the band.
Kjellson live with Enslaved in 2015
Enslaved is a Norwegian extreme metal band formed by Ivar Bjørnson and Grutle Kjellson in Haugesund in 1991. They are currently based in Bergen. The band's lineup has changed many times over the years, and Bjørnson and Kjellson have been the sole constant members. The current lineup also includes lead guitarist Arve Isdal, keyboardist/singer Håkon Vinje, and drummer Iver Sandøy.
Enslaved in 2021. From left to right: Arve Isdal, Håkon Vinje, Grutle Kjellson, Ivar Bjørnson and Iver Sandøy.
Singer Grutle Kjellson at the Wave-Gotik-Treffen 2016 in Germany