The Esplanade on Boston's Charles River will explode with color and sound once again for the city's 36th annual Fourth of July extravaganza. Neil Diamond of "Sweet Caroline" fame, a singer near and dear to the hearts of Red Sox fans, is this year's featured musical performer. Maestro Keith Lockhart and The Boston Pops will also be on hand, with CBS late night host Craig Ferguson as emcee. This year, Rozzi Fireworks of Ohio will do the honors with a dazzling 21-minute fireworks display, accompanied by the traditional Pops rendition of the 1812 overture.