• KATY PERRY photo | Katy Perry

Credit: Olivier Douliery/ABACA

Published: Tuesday January 22, 2013 06:00 AM EST



Katy Perry works the teen and 'tween crowd at Washington, D.C.'s Kids Inaugural Concert, to honor military families. First Lady Michelle Obama and daughters Sasha and Malia had front-row seats, the better to see and hear Usher, the cast from Glee and others.