Swedish music producer and DJ best known as one half of the critically-acclaimed electronic music duo The Knife. He also DJ's as DJ Coolof and releases music under the alias Oni Ayhun.
He began making music with The Knife in 1999.
When he DJ's, he does not perform at events where more than 50% of the artists on the lineup identify as men.
His sister Karin Dreijer Andersson is the other half of The Knife.
He released a remix of Emmanuel Jal's "Kuar" in 2010.