NEW YORK--(BUSINESS WIRE)--On Friday, July 4, Macy’s will celebrate its iconic Macy's 4th of July Fireworks® celebration live from the iconic Brooklyn Bridge, painting the New York City skyline with vibrant colors and sound and creating unforgettable memories for millions across the country. The 49th edition of the nation’s largest Independence Day celebration will fire more than 80,000 shells, 30 vibrant colors and awe-inspiring effects, including state-of-the-art projection mapping on the Bro