Demi Lovato and Ludacris will headline Wawa Welcome America's Fourth of July concert and fireworks display on the Benjamin Franklin Parkway to conclude the 16-day Independence Day festival. Other events happening this June and July include free museum admission, cultural festivals, block parties at the Kimmel Center and the African American Museum of Philadelphia and Wawa Hoagie Day, in which the title sponsor of the festival will give away 55,000 hoagies on Independence Mall and in hundreds of its stores on June 28.