Hatsune Miku

Hatsune Miku (初音ミク Hatsune Miku) is an avatar for Vocaloid (a synthesizer application) and its personification, both developed by Crypton Future Media. She is the first in line of Crypton's "Character Vocal Series" and is powered by Yamaha Corporation's Vocaloid 2 synthesizing technology.

The program, and by extension, the character Hatsune Miku, becomes famous throughout Nico Nico Douga as a performer of many fan-based compositions, and eventually becomes a major icon in Japanese pop culture.