I love EL wire. I find it rather elegant compared to LEDs, but anyway. The thing about this video that confuses me is whether or not Katy Perry's peacock tail is externally controlled, a timed display, or incorporates real-time processing. I'm pretty sure it's not some kind of on-the spot signal processing, but if your audience can't tell, you should re-think your display. Counter-intuitiveness is never chic. Otherwise, the costume's pretty cute.