In a recent revealing of the list of artists participating, Hatsune Miku has been listed as a special guest performer in the annual Animelo Summer Live concert happening in Saitama, on the 25th and 26th of August. Miku will perform on the second day of the concert, on the 26th of August, Saturday.
Miku's profile roughly translate as follows:
Hatsune Miku is a software developed by Crypton Future Media, and is the company's "Virtual Singer"
Hundreds of thousands of creators have since worked with Hatsune Miku to create and upload songs onto the Internet, and her popularity has since spread all over Japan, and all over the world. Miku has performed in sold out solo concerts organized in Tokyo, Los Angeles, and Singapore.
The various works of Hatsune Miku created by Japanese creators (Songs, Illustrations, Videos, etc), have already begun to connect people around the world under one passion.
Google Chrome's 2011 TV Commercial involving Hatsune Miku won an award (Bronze) in the Cannes Lion International Festival of Creativity.
Hatsune Miku was last present as a guest performer at Animelo Summer Live 2009, singing Miku Miku ni Shite Ageru, as well as Black Rock Shooter in a revealing of the BRS OVA.
Source: Animelo Summer Live 2012 Artist Index