Katy Perry Windows Phone 7 Launch Puts on a Free Performance

Last month in New York, Microsoft unveiled their new Windows Phone 7 mobile device and to celebrate there will be a Katy Perry Windows Phone 7 concert.

The concert also features the popular band Maroon 5 who will perform in San Francisco and both concerts are free to the public. This awesome live marketing campaign will hopefully woo the young and fun music- fans as Microsoft tries to compete in the smartphone market. Nevertheless, how could you not love the free Katy Perry Windows Phone 7 concert?