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.
Ievan Polkka
The Finnish folk song was also given popular covers by several Japanese Vocaloid singers, such as Megurine Luka, Kagamine Rin, and Kagamine Len. The most popular vocaloid cover belonged to that of Hatsune Miku, garnering more than 40 million views on her official YouTube music video as of December 2017. Its popularity has lent itself to being used in the Vocaloid rhythm game "" as the tutorial music. It has also been used in a commercial promoting the LG G5 smartphone.