Computer-generated pop star Hatsune Miku is projected on a screen during her concert in Tokyo in this handout picture taken March 8, 2012. Hatsune Miku has a following that would make most Japanese pop stars green with envy, with thousands of fans at every concert and a big international following. She never misses a beat, fluffs a line or messes up a step. But then she doesn't really exist. Picture taken March 8, 2012. REUTERS/SEGA/CRYPTON FUTURE MEDIA. ORGANIZED BY SEGA/IMAGES/Handout

Full Story: She sings, she dances, she's ... not real