The giant ball that traditionally drops as part of New York's new year celebrations will have a new kaleidoscope design this year.
Organisers have been giving it a test run by throwing a switch that illuminates 32,256 lights embedded in 2,688 Waterford crystals.
At 6pm local time (11pm UK time) the ball will be raised to the top of a 130-foot pole at 43rd Street and and 7th Avenue in Times Square, and then lowered to usher in the new year.
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Donald Trump has branded those who take part in terrorist acts as "evil losers" in the wake of a suicide attack at Manchester Arena.
Live ITV News coverage after the explosion at Manchester Arena following a pop concert by US singer Ariana Grande.
What separates us from the terrorists is that we air our grievances with non-violent debate though our democratic structures and processes.