Also to note that vocaloid also has cultural impact on society.Since the release of "Hatsune Miku" developed by Crypton Future Media's success and "her" success has led to the popularity of the Vocaloid software in general.Japanese video sharing website Nico Nico Douga played a fundamental role in the recognition and popularity of the software. A user of Hatsune Miku and an illustrator released a much-viewed video, in which "Hachune Miku", a super deformed Miku, held a Welsh onion (leek) (Negi in Japanese) and sang the Finnish song "Ievan Polkka" like the flash animation "Loituma Girl", on Nico Nico Douga.

Vocaloid was sold as a product for professional musicians, and although there were many producers using the software within Japan by 2011, a report was released detailing the true reflections of the Vocaloid craze. It was conducted independently by fans of the Vocaloid software and detailed the popularity of certain Vocaloids over others. Most Vocaloid related videos struggled to get over 5,000 views and the most popular producers gaining the most interest over lesser popular producers.
Sources: Wikipedia - Vocaloid