Katy Perry, Maroon 5 Set the Stage for Windows Phone Launch (PHOTOS)

Katy Perry and Maroon 5 were front and center on both coasts last night, headlining huge blowout concerts to launch Microsoft’s highly-anticipated Windows Phone.

Celebuzz’s Mobile Blog Workforce was hard at work (and play!) last night, soaking in all the excitement and great live music. Check out the dispatches from both Katy’s rockin’ set at NY’s Roseland Ballroom, and Maroon 5’s full of hits show at San Francisco’s Fillmore Theatre.

Be sure to check out our Mobile Blogforce page for reports from future events, all with the hot new Windows Phone.

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