If you're a Hatsune Miku fan and you live near San Francisco, great news! According to Anime News Network, the city's J-Pop Summit Festival, which takes place on September 18th in Japantown, is slated for an appearance by Miku in Miku Hatsune LIVE!, making this her first stateside "concert". The concert itself will actually be a showing of a DVD/Blu-ray disc called 39's Giving Day, containing a VOCALOID performance done earlier in Japan as well as popular songs such as "Just Be Friends," "from Y to Y," "magnet," and others. It will also be available for purchase at the event in Blu-ray. Attendees will receive a Miku poster as well.
If you don't know who Hatsune Miku is, then why don't you give this a read?