It could be one of the coldest New Year's Eve celebrations in Times Square on record.
The highly-popular area was filling up fast Sunday afternoon with revelers wanting to see the big, highly-crystalized 2018 ball drop at midnight.
That will be followed by a burst of more than a ton of confetti and fireworks.
People assembled at the so-called "Crossroads of the World'' more than 12 hours before the big flashy countdown.
Security was extremely tight throughout Manhattan after a year that saw several fatal attacks on large crowds.
The temperature is expected to be in the teens with wind chills dipping below zero, (farenheit).
Mariah Carey will perform again on "Dick Clark's New Year's Rockin' Eve,'' hosted by Ryan Seacrest, after a bungled performance last year.
Drinking alcohol is discouraged because it causes the body to lose heat faster.
The NYPD said it'll be very cold, but safe in Times Square for the arrival of the new year with unprecedented security.