Hatsune Miku is a rising star in Japan and abroad, singing catchy J-pop that matches her blue-green hair. She’s also a virtual avatar created by Crypton Media using Yamaha’s Vocaloid voice synthesizer. That hasn’t stopped her from amassing a legion of fans who really love her work. I mean really love it. Check out the crowd frantically waving glow-sticks and singing along with Hatsune Miku as she appears via a ‘3D hologram’ on stage in the videos.