Hatsune Miku is a virtual idol. She exists in the virtual space. In the latest Kids React, a group of kids react to the singer.
Footage is shown of the Sega-produced Miku concert, and the kids, while initially WTF-ing, do offer up some insightful and open responses about the virtual popstar, as well as some kids who couldn't quite get their head around the notion.
Toyota adopted the virtual singer for an awkwardly Westernized ad campaign.
Kids React to Hatsune Miku [DannyChoo.com]