Otto Jettmann better known as Otto Knows is a Swedish DJ and music producer who has had a number of hits in Sweden, Belgium and the Netherlands and has collaborated with a number of artists including Tim Berg (Avicii), Sebastian Ingrosso, Alesso and has made remixes from ATB, Imogen Heap and others. His break came in 2010 on the electronic scene with "Hide and Seek" (Otto Knows bootleg) by Imogen Heap. This caught the attention of Tim Berg (Avicii) that used his production in "Hide & Seek (Avicii Remix)".