Rune Reilly Kölsch or just Kölsch, is a Danish techno musician and DJ. His track “Grey” reached top 20 in the UK and he has worked with Coldplay, Imogen Heap, London Grammar, Tiga, Sasha, Michael Mayer In 2017 he performed on top of the Eiffel Tower in Paris, which was streamed to over 10 million people. He made waves in 2014 with “Cassiopeia”, and then earned his recognistion from the DJ’s on Radio 1 (Annie Mac, Danny Howard and Pete Tong).