New Yorkers strip down for No Pants Subway Ride [PHOTOS & VIDEO]

Some riders in the New York City subway in the underwear as the take part in the 2013 No Pants Subway Ride January 13, 2013. Started by Improv Everywhere, the goal is for riders to get on the subway train dressed in normal winter clothes (without pants) and keep a straight face. AFP PHOTO / TIMOTHY A. CLARY (Photo credit should read TIMOTHY A. CLARY/AFP/Getty Images)

Thousands of people stripped down for the annual No Pants Subway Ride