[Video] Psy Rocks Out New Year's in Times Square With MC Hammer, Yoo Jae Suk and Noh Hong Chul

After spending most of the last half of 2012 taking the world by storm with Gangnam Style, Psy capped off his stellar year by bringing it big to the crowds in New York's Times Square.

Psy hit the stage of New Year's Rockin Eve, hosted by Ryan Seacrest, on December 31 where the singer gave another rousing performance of Gangnam Style.

The singer didn't do it alone for the special performance however as he surprised audiences by not only bringing on stage Yoo Jae Suk and Noh Hong Chul (dressed in their iconic outfits from the Gangnam Style music video), but also MC Hammer once more, as previously reported.

Capping off the performance was a short interview with host Ryan Seacrest, who revealed to the crowd it happened to also be Psy's birthday that day, before leading the crowd into wishing Psy a happy birthday.

Watch the full performance below:

Photo Credit: ABC