Traditionally the best, and most proudly patriotic, of the evening’s July 4 festivities, this live concert from Washington, D.C., this year, is scheduled to include Kelli O’Hara (one of my favorite Broadway musical stars, and a repeat performer at this event, seen here in 2011), as well as Frankie Valli and the Muppets. Let’s hope those last two acts sing together. Check local listings.