Yes, one of the smaller stages at Tomorrowland comes with its own large illuminated fountain display, it's very reminiscent of Efteling.
The festival has evolved away from entirely EDM - Guetta, Axwell, Timmy Trumpet and the like - and into more straight-up techno and house that has become fashionable again of late, but it's still very mainstream. Of course there is inevitably lots of drug taking at the festival, but I'd reckon that it's such a brand now that a lot of people go just to gawp at the steampunk stuff, jump around and take selfies, without putting anything up their nose.
When the time comes, there is only one man who should open this thing: