We have to say that our favorite part of the Brooklyn Bridge 125th Anniversary celebration will probably be the kick off activities. Per the Visit NYC website:

Be part of the excitement with a concert featuring the Brooklyn Philharmonic and special guest performances, followed by a Grucci Fireworks extravaganza. A festive lighting ceremony will illuminate the entire Bridge, which will remain lit every evening from 9pm–11pm through Memorial Day. Doors open at 6pm; concert starts at 7:45pm. Free. (Empire-Fulton Ferry State Park, enter at Main Street, Brooklyn)

A Brooklyn Bridge Grucci fireworks extravaganza! The full schedule of events, and there are a bunch of them, is here.