The DJ of Kek is likely a shitposter from /pol/. The exact date of his first appearance is unknown due to the lack of video I could get from a Google search, but it is likely to be around January 23rd, as it was shortly after the HWNDU, set it on loop, and let it play for hours until it eventually died and Shia found it the next morning(not shown in that particular video). Though he is only well known for this action, he did this kind of thing multiple times. By looking on http://www.hewillnotdivide.us/ during the time period where the HWNDU project was still hosted at the outside of a museum, though not all the tapes have been saved here, you can see some
nights this same man showed up and provided his fellow shitposters with some quality music. Some of the songs he played included various Moonman songs, Shadilay, and Danger Zone, along with some others. His real name is unknown, and well really nothing is known about him, the only thing that is known is that his work will be cherished forever. Shadilay!