Joe Mantegna, best known as the voice of Fat Tony on The Simpsons, will lead the fundraising effort for the planned National Museum of the United States Army.

Classical Music Agenda by DCist contributor Charles T. Downey of Ionarts If you have not done your civic duty and Taken a Friend to the Orchestra yet this month, Washington is not the place to try to make that happen in late May. We don’t have much to suggest for your classical listening pleasure this week, but you can keep yourself informed by following our Classical Week in Washington column at Ionarts. FREE CONCERTS: >>…