NEW YORK, NY - DECEMBER 16:  People dance in a vintage New York City subway car as it moves along the M line on December 16, 2012 in New York City. The New York Metropolitan Transportation Authority (MTA) runs vintage subway trains from the 1930's-1970's each Sunday along the M train route from Manhattan to Queens through the first of the year. Photo: Preston Rescigno, Getty Images / 2012 Getty Images