Alright alright, IDM ("Intelligent Dance Music") doesn't at all
have to be danceable. Rather, it's a term which roughly describes some of the experimental electronica music which would become popular in the 90s. Some of the most populart artists include names like Aphex Twin, Autechre and The Orb.
So, let's celebrate the IDM artists and their music!
I'll get the most obvious out of the way

Here's Aphex Twin's Rubber Johnny, video by Chris Cunningham. May scare your kids!