What is that song they play in a lot of movies?

It just instrumental, but they usually play it in american revolution movies, during parades, or marches. Its like a patriotic song, very common, kind of upbeat, I just don't know what it is. I think its associated with the independence, usually played on july 4th, Its not america the beautiful or the anthem. Thank you.What is that song they play in a lot of movies?"The Stars and Stripes Forever" by John Phillips SousaWhat is that song they play in a lot of movies?A drum?