Mystery man Tiesto surprised all aboard the Holy Ship for an impromptu set. The crowd went berserk as the biggest DJ in the world appeared behind the decks to throw down some beats. The 3 day cruise featured top edm acts including Zedd, Diplo, and Skrillex. Watch Tiesto in action as he rocks out at sea with his fellow DJ buddies, meets eager fans, and dances the conga. Check out the video on Rolling Stone, and click through the slide-show above to see some of Tiesto's highlights from Holy Ship!!!