Thousands of people participated in the 12th annual No Pants Subway Ride, organized by New York City prank collective Improv Everywhere. During the afternoon winter event, participants boarded separate subway stops and removed their pants, pretending that they did not know each other. The event, referred to as a "celebration of silliness" is designed to make fellow subway riders laugh and smile. In this photo, a woman rides the subway pantless on Jan. 13, 2013, in New York City.
Author: Edecio Martinez
Credit: Timothy A. Clary/AFP/Getty Images