Hatsune Miku: Project DIVA (初音ミク -Project DIVA-?) is a 2009 rhythm video game developed by Sega and Crypton Future Media. It is the first Project DIVA game in the series. The game was released in Japan on July 2, 2009 for the PlayStation Portable with no international release. The game makes use of VOCALOIDs, a series of singing synthesizer software, and the songs created with these VOCALOIDs, most notably the virtual diva Hatsune Miku who stars as the titular character of the franchise. It was first announced in 2008 when it was in development.