Photo taken on Dec 2, 2015, shows the Norway Spruce during the 83rd Christmas Tree Lighting Ceremony in Rockefeller Center in New York, the United States. Thousands of people witnessed the lighting of 45,000 multi-colored, energy efficient LEDs on the 78-foot-tall, 80-year-old Norway Spruce, which is topped with a spectacular Swarovski crystal star in Rockefeller Center on Wednesday. The Rockefeller Center has held the Christmas tree lighting ceremony annually to greet the upcoming Christmas since 1933. [Photo/IC]