If Hatsune Miku were an actual person and not an insanely popular virtual popstar vocaloid she’d currently be in hot water with fans after her latest concert series. Miku Expo is an annual international tour where vocaloid developer Crypton Future Media and anime streaming company Crunchyroll bring Hatsune Miku fans together for a concert, exhibits, and other fan events, all leading to a virtual performance by the character herself, typically via a hologram.
On the official Miku Expo website, the ticketing section doesn’t detail how the character will be portrayed at the event. The page says that non-concert-approved LED lights, flashlights, or battery-powered glow sticks “may interfere with the concert performance” but doesn’t expand on that any further. The site’s photos from previous events showcase the hologram.