The last of the crystal triangles that make up this year's Times Square New Year's Eve ball were installed on Friday morning, marking the first time in 10 years that all 2,688 were replaced at once.
Rapper Pitbull and inventor Joy Mangano were among those on hand to help the organizers of the celebration put the final pieces in place atop One Times Square, the skyscraper from which the 11,875-pound (5,386-kilogram) geodesic sphere drops to mark the new year.
