Hatsune Miku
Since the success of her Vocaloid 2 package led to an expansion of marketing possibilities, most of the mass marketing has come after her initial release as a response to her popularity and has been on going since 2008. Even with the addition of other Character Vocals, Miku's name continues to be used as the primary source of marketing for Crypton Future Media, to the point where most products for their Vocaloid related products will usually only feature Hatsune Miku's name. In March 2012, the Nomura Research Institute estimated that the sales of all Hatsune Miku brand goods added up into the region of since her release in 2007. Her name is easily the most recognizable of all Vocaloids.
Miz
After graduating from high school, she moved to Tokyo. Soon afterward, she was signed under "Universal Victor" and, under her real name, released "I WILL"(TX TV show "Renai Slot Kuru Kuru V" 's ending theme song), her first single. Five months later, she released a second single called "Ambition"(PlayStation game "Kouklo Theatro" 's theme song). Neither single charted in the top 100 singles and she was not asked to release anything else after that. Both singles are now out of print in most Japanese CD stores. Mizrock wrote the lyrics to all four of the songs on these singles.