Katy Perry & Maroon 5: Windows Phone 7 Kickoff!

Adam Levine and his Maroon 5 bandmates rocked out at the Fillmore in San Francisco on Monday (November 8) to celebrate the launch of Microsoft’s new Windows Phone 7!

Meanwhile, across the country, Katy Perry brought her sweet and sexy music to the stage at NYC’s Roseland Ballroom.

Two lucky concertgoers took their new Windows phones a spin at the concerts – check out what they had to share!

“I grabbed my phone just as Maroon 5 made their way to the stage and managed to score some stellar footage of the flashing lights and Adam belting out the lyrics to their latest, ‘Misery,’” one wrote. “As the band moved into their next song–”Harder to Breathe” – I was immediately transported back to my college days (in San Francisco) when Maroon 5 opened for Dave Matthews at the Filmore in 2002. All I could think of (besides how captivating Mr. Levine is with his sleeves and white tee) was how awesome it’ll be to reminisce with my college buddies, thanks to these photos.”

Katy‘s set included her hits “Hot N Cold,” “I Kissed A Girl,” “Peacock” and “Firework”!

“I hope you’ve requested ["Firework"] and downloaded it off your new Windows Phone,” Katy exclaimed to screaming, dancing fans.

Sounds like a blast!! Learn more about the Windows Phone here.