C.K., whose real name is Christoffer Schou Kejlstrup, is a Danish DJ and producer hailing from Aarhus, Denmark. He is a significant figure in the underground dance music scene, recognized for his high-energy performances and productions that blend house and techno elements.

Since his debut in 2013, C.K. has played at various venues worldwide, including in Copenhagen, Berlin, London, New York City and Stockholm. He co-founded the label and collective Regelbau, celebrated for its organic and ethereal house music style, which has contributed to establishing Aarhus as a hub for innovative house music. Additionally, Christoffer has delivered multiple radio sets at radio stations including The Lot Radio.

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