English: WASHINGTON, DC (July 3, 2017)--Performers, support staff and attendees gather on the Capitol grounds for dress rehearsal of the annual "A Capitol Fourth" concert July 3, 2017.

“A Capitol Fourth” is a free annual concert performed on the west lawn of the United States Capitol Building in Washington, D.C., in celebration of Independence Day each July 4. Broadcast live on PBS, NPR and the American Forces Network and presented by WETA, the concert is viewed and heard by millions across the United States and the world, as well as attended by more than half a million people at the Capitol. The concert traditionally features elements of the 3rd U.S. Infantry Regiment (The Old Guard), the United States Army Presidential Salute Guns Battery, the U.S. Army Band (Pershing's Own), the National Symphony Orchestra and the Choral Arts Society of Washington, who provide much of the music during the show for various celebrity artists. A celebrity host and a variety of guests entertain and pay tribute to their country throughout the evening.

(Department of Defense photos by Reese Brown)