Carl Cox: One man, a few friends & 10,000 party people! UDC, known for Dance Valley, Impulz, HQ,Concept and 4 Elements, proudly presents Carl Cox & Friends where the big man play a six-hour set alongside friends in the Ahoy, Rotterdam. The entire party centres around Carl and he will announce who his DJ friends are that will be lining-up alongside him. On the subject, Carl said: There is nothing better than sharing good music with friends. When we decided to do this event, I really wanted to make it something personal, and also share it with my friends. What you will experience on this evening is something never done before. The show has been designed from the bottom up, costs have been thrown out of the window and the priorities - sound, production, lighting, and of course music - have taken centre stage!