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.
Kimi no Shiranai Monogatari
During the production of the 2009 anime series "Bakemonogatari", Supercell was asked to compose what would later become the ending theme song "Kimi no Shiranai Monogatari". It was already decided that Supercell would release their debut album "Supercell" in March 2009, which used the Vocaloid singing synthesizer Hatsune Miku as the vocalist. In place of Miku, Supercell employed the singer Nagi Yanagi, a vocalist who had previously submitted cover versions of songs to the Nico Nico Douga video sharing website under the name Gazelle. "Kimi no Shiranai Monogatari" was the first release by Supercell to not use Miku as the vocalist. Yanagi was chosen for "Kimi no Shiranai Monogatari" by Ryo, who had been a fan of her voice even before uploading his own songs to Nico Nico Douga in late 2007. Roughly the next day after Ryo uploaded Supercell's first song "Melt" onto Nico Nico Douga in December 2007, Yanagi uploaded a cover of her singing the song. Yanagi, who was herself a fan of Ryo's music, contacted him and the two talked about someday collaborating.