+6 Hatsune Miku | Fictional Characters | Dictionary.com Hatsune Miku is a 16-year-old virtual idol with long turquoise twintails, created by Crypton Future Media and released on August 31, 2007. She is a singing voice synthesizer software (Vocaloid) that allows users to create music, with over 100,000 songs, 170,000 YouTube videos, and 1 million artworks created by her community.