Security is tight as hundreds of thousands of people are expected to line the banks of Boston's Charles River to watch the fireworks for the Fourth of July celebrations.
The celebration features pop stars Nick Jonas and Demi Lovato, country group Little Big Town and, as always, the Boston Pops Orchestra, which drives home the climactic fireworks finale to Tchaikovsky's "1812 Overture."
If you're planning to attend the festivities Monday night, there are items allowed and not allowed on the Esplanade.
You can bring pop-up tents without sides, blankets or tarps, folding beach chairs, coolers, personal items in clear plastic bags and small purses.
You cannot bring coolers on wheels, backpacks, glass containers or cans.
You also cannot bring any premixed beverages, liquid in clear plastic greater than two liters, or any alcoholic beverages.
There is no grilling allowed, as well as propane tanks or open flames.
State, local and federal authorities say they have been working around the clock to ensure the celebration runs smoothly.