Klangstof is a Dutch/Norwegian indie rock band composed of Koen van de Wardt, Wannes Salome, Erik Buschmann and Jobo Engh. The band is based in Amsterdam and signed to Mind of a Genius. Koen van de Wardt (born 30 May 1992) grew up in a remote area in Norway, where he taught himself how to play and record. After moving to Amsterdam in 2013 to join Dutch indie band Moss, he also started releasing music as Klangstof. Klangstof was confirmed to play Coachella 2017 as the first Dutch band ever to play the festival.