Japanese pop singing sensation Hatsune Miku sang at Odaiba's Zepp Tokyo concert venue in March 2010. This is news because Hatsune Miku is a blue-haired, Sailor Moon look-alike, holographic character whose voice is based off of a singing synthesizing application. That's right--she's not real, but she's giving real concerts. And, well, if you take a look at some of her videos, she certainly seems to
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