This is The Disappearance of Hatsune Miku, which we encountered in the live shows.
This version, though, features continually changing costumes and scenery for much of its duration (but not forgetting to include the purple curly-wurly hair and wings, of course) and is quite a visual feast, not to be missed.
It also has English subtitles, both literal, and (where the compiler thinks it will aid understanding) occasional additional words in square brackets. It's quite interesting to follow the words – if you can keep up!
This is also known as Miku's 'intense' song, parts of which go at such a speed that they are sometimes thought to be impossible for (mere?) humans to emulate – but, surprisingly, there have been several successful attempts by fans to do just that, though I haven't yet found any examples in the public realm.
Perhaps one day...