Miranda Cosgrove Celebrates Christmas in Washington

Miranda Cosgrove glitters in a gold “Brigitte” dress by Milly as she performs onstage during TNT’s Christmas in Washington 2010 at the National Building Museum in Washington, D.C. on Sunday evening (December 12).

The 17-year-old actress joined Andrea Bocelli, Mariah Carey and Glee‘s Matthew Morrison to sing for the President and the First Family of the United States.

Earlier in the week, Miranda took the ACT test at Archbishop Carroll High School.

Christmas in Washington 2010 airs Friday, December 17 @ 8PM ET/PT on TNT. Check back soon for Miranda‘s performances!

10+ pics inside…