Pranksters across the globe annually go without pants for the annual No Pants Subway Ride, which was started in 2002 by a New York comedy group. In 2018, riders plan to persist despite frigid temperatures and snow throughout the U.S.'s East coast.
The 2018 #NoPantsDC Metro ride gets underway.
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This man is ready for the 2018 #NoPantsDC Metro ride.
People take part in the annual 'No Trousers On The Tube Day' (No Pants Subway Ride) on a London Underground tube train event in central London on January 8, 2017.nStarted in 2002 with only seven participants, the day is now marked in over 60 cities around the world. The idea behind "No Pants" is that random passengers board a subway car at separate stops in the middle of winter, without wearing trousers. The participants wear all of the usual winter clothing on their top half such as hats, scarves and gloves and do not acknowledge each other's similar state of undress. / AFP / Justin TALLIS (Photo credit should read JUSTIN TALLIS/AFP/Getty Images)
D.C.'s annual version is organized by comedy group Capitol Improv.
MEXICO CITY, MEXICO - FEBRUARY 21: People take part in the event called No Pants Subway Ride 2016 at the Mexico City Subway in Mexico City, Mexico on February 21, 2016. (Photo by Daniel Cardenas/Anadolu Agency/Getty Images)
Passenger not wearing pants sit on a subway train during the "No Pants Subway Ride" on January 8, 2017 in Prague. The No Pants Subway Ride is an annual event which was started in 2002 by Improv Everywhere in New York, the goal is for riders to get on the subway train dressed in normal winter clothes without pants and stay serious. / AFP / Michal Cizek (Photo credit should read MICHAL CIZEK/AFP/Getty Images)
Passengers take part in the No Pants Tube Ride on the London Underground. (Photo by John Stillwell/PA Images via Getty Images)
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LONDON UNDERGROUND, LONDON, GREATER LONDON, UNITED KINGDOM - 2017/01/08: 8th annual 'No Trousers Tube Ride' in London. The No Pants Day (Trousers in UK) is a participatory annual event that has happened in various nations. It requires wearing just undergarments in the lower part of body in public. (Photo by Alberto Pezzali/Pacific Press/LightRocket via Getty Images)
No Pants Subway Ride in Barcelona city. January 11th of 2015. Catalonia, Europe.
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Participants in the 13th annual international 'No Pants Subway Ride' board the uptown 6 train at Bleecker Street on January 12, 2014 in New York City.
January 11, 2015: People wearing no pants participate in the 'No Pants Subway Ride' in Bucharest, Romania. No Pants Subway Ride is an annual global event started in USA in 2002.
January 10, 2016: Participants reading a book on the subway during the 8th Annual No Pants Metro Ride.
JANUARY 10: People take part in the No Pants Subway Ride, funny annual event on JANUARY 10, 2016 in Milan.
8th January, 2012: Participants of 11th No Pants Subway Ride happening in Warsaw.
BERLIN, GERMANY - JANUARY 08: People without pants ride an underground train on January 8, 2017 in Berlin, Germany. The annual event, called "No Pants Day," is a whimsical Facebook call up and attracts participants in several cities across the globe. (Photo by Steffi Loos/Getty Images)
A casually woman reads a book on a train in Toronto, Canada's No Pants Subway Ride in 2014. Maybe she just forgot her pants at home?