Ayu's Concert Stage Dress

[haraiso]

So I'm doing a speech about Ayu next week and along with talking about her career and achievements, I wanted to show off some of the amazing outfits she's worn and the different concert stages she's had.

There's one outfit in particular that I'd like to know more about though.
In this particular Music Station talk (the one with Lady Gaga), they talk about this dress/stage:


Can you guys tell me more about that dress/outfit/stage?
Or do you know what concert/performance it's from?