Jessica called it a "huge honor," which might be an understatement. The singer has belted her heart out for America's service members before -- just last year she performed for sailors on the USS Harry S. Truman in the Persian Gulf.
Jill Biden and Michelle will be on a national two-day tour this week, hosting initiatives in North Carolina, Texas, Denver and Ohio that seek to "highlight the work of Americans who have answered the call to serve our military families."
And apparently they'll be spending time with a Hollywood favorite to make for some great celebrity politics!