From Shanghai to New York, Transit Riders dropped their drawers on trains and subways Sunday for the 12th annual “No Pants Day.” This day was created by a group of pranksters called “Improv Everywhere.” regarding to these pranksters No Pants Day is all about good fun. This year, 60 cities in 20 countries are participating to cause chaos and joy in public places.

No Pants Day 2013

Passengers look at a man not wearing pants, while riding in the subway during the annual ”No Pants Subway Ride” in Shanghai. ALY SONG/REUTERS

No Pants Day 2013

Passengers react to seeing a man take off his pants on the subway during the annual ”No Pants Subway Ride” in Shanghai. ALY SONG/REUTERS

No Pants Day 2013

Passengers look at two women without their pants on the subway during the annual ”No Pants Subway Ride” in Shanghai. ALY SONG/REUTERS

No Pants Day 2013

Passengers react to seeing a man take off his pants, on the subway during the annual ”No Pants Subway Ride” in Shanghai. ALY SONG/REUTERS

No Pants Day 2013

Passengers look at a man without his pants on the subway during the annual ”No Pants Subway Ride” in Shanghai. ALY SONG/REUTERS

No Pants Day 2013

People take part in the annual ”No Pants Subway Ride” in Shanghai. ALY SONG/REUTERS

No Pants Day 2013

Participant of ”No Pants Subway Ride” is seen on the subway in Shanghai. ALY SONG/REUTERS

No Pants Day 2013

Passengers react to seeing a man without his pants on the subway during the annual ”No Pants Subway Ride” in Shanghai. ALY SONG/REUTERS

No Pants Day 2013

Two men not wearing pants play chess on the subway during the annual ”No Pants Subway Ride” in Shanghai. ALY SONG/REUTERS

No Pants Day 2013

Men not wearing pants take part in the annual ”No Pants Subway Ride” in Sofia. STOYAN NENOV/REUTERS

No Pants Day 2013

A couple kisses as people who are not wearing pants wait on the subway station during the annual ”No Pants Subway Ride” in Sofia. STOYAN NENOV/REUTERS

No Pants Day 2013

A man not wearing pants waits on the subway station during the annual ”No Pants Subway Ride” in Sofia. STOYAN NENOV/REUTERS

No Pants Day 2013

People not wearing pants wait on the subway station during the annual ”No Pants Subway Ride” in Sofia. STOYAN NENOV/REUTERS

No Pants Day 2013

Passengers look at a participant in the annual ”No Pants Subway Ride” in Sofia. STOYAN NENOV/REUTERS

No Pants Day 2013

Participants take part in the annual ”No Pants Subway Ride” in Stockholm. SCANPIX SWEDEN/REUTERS

No Pants Day 2013

Participants participate in the annual ”No Pants Subway Ride” in Stockholm. SCANPIX SWEDEN/REUTERS

No Pants Day 2013

People without their pants take part in the ”No Pants Subway Ride” in Berlin. FABRIZIO BENSCH/REUTERS

No Pants Day 2013

People without their pants sit in a subway train as they take part at the ”No Pants Subway Ride” in Berlin. FABRIZIO BENSCH/REUTERS

No Pants Day 2013

Passengers look at a man without his pants on the subway during the ”No Pants Subway Ride” in Berlin. FABRIZIO BENSCH/REUTERS

No Pants Day 2013

A man without his pants reads a newspaper in a subway train as he takes part at the ”No Pants Subway Ride” in Berlin. FABRIZIO BENSCH/REUTERS

No Pants Day 2013

People without their pants sit in a subway train as they take part at the ”No Pants Subway Ride” in Berlin. FABRIZIO BENSCH/REUTERS

No Pants Day 2013

People without their pants wait for a subway train during the ”No Pants Subway Ride” in Berlin. FABRIZIO BENSCH/REUTERS

No Pants Day 2013

People without their pants wait for a subway train during the ”No Pants Subway Ride” in Berlin. FABRIZIO BENSCH/REUTERS

No Pants Day 2013

People without their pants exit a subway train during the ”No Pants Subway Ride” in Berlin. FABRIZIO BENSCH/REUTERS

No Pants Day 2013

People without their pants wait for a subway train during the ”No Pants Subway Ride” in Berlin. FABRIZIO BENSCH/REUTERS

No Pants Day 2013

People without their pants wait to enter an approaching subway train during the ”No Pants Subway Ride” in Berlin. FABRIZIO BENSCH/REUTERS

No Pants Day 2013

A commuter pushes his pram as people without their pants wait at a subway station during the ”No Pants Subway Ride” in Berlin. FABRIZIO BENSCH/REUTERS

No Pants Day 2013

People without their pants wait for a subway train during the ”No Pants Subway Ride” in Berlin. FABRIZIO BENSCH/REUTERS

No Pants Day 2013

Commuters watch people without their pants at a subway station during the ”No Pants Subway Ride” in Berlin. FABRIZIO BENSCH/REUTERS

No Pants Day 2013

People watch as participants in the No Pants Subway Ride take the 6 train downtown in New York. CARLO ALLEGRI/REUTERS

No Pants Day 2013

People without their pants arrive for the train during the ”No Pants Subway Ride” in Mexico City. HENRY ROMERO/REUTERS

No Pants Day 2013

Participants in the No Pants Subway Ride wait to take the 6 train downtown in New York. CARLO ALLEGRI/REUTERS

No Pants Day 2013

People watch as participants in the No Pants Subway Ride take the 6 train uptown in New York. CARLO ALLEGRI/REUTERS

No Pants Day 2013

People watch as participants in the No Pants Subway Ride take the 6 train uptown in New York. CARLO ALLEGRI/REUTERS

No Pants Day 2013

Participants in the No Pants Subway Ride cross Lexington Avenue to take the 6 train downtown in New York. CARLO ALLEGRI/REUTERS

No Pants Day 2013

Participants who are taking part in the ”No Pants Subway Ride” stand in a subway train in Mexico City. HENRY ROMERO/REUTERS

No Pants Day 2013

People watch as participants in the No Pants Subway Ride take the 6 train uptown in New York. CARLO ALLEGRI/REUTERS

No Pants Day 2013

Participants of ”No Pants Subway Ride” stand in a subway train in Mexico City. HENRY ROMERO/REUTERS

No Pants Day 2013

Sosnowski stands in Union Square after taking part in the No Pants Subway Ride in New York. CARLO ALLEGRI/REUTERS

No Pants Day 2013

Participants of ”No Pants Subway Ride” wait for the train in Mexico City. HENRY ROMERO/REUTERS

No Pants Day 2013

A participant of ”No Pants Subway Ride”stands in a subway train in Mexico City. HENRY ROMERO/REUTERS

No Pants Day 2013

Participants of ”No Pants Subway Ride” wait for the train in Mexico City. HENRY ROMERO/REUTERS

No Pants Day 2013

People taking part in the No Pants Subway Ride wait to board the uptown 6 train in New York. CARLO ALLEGRI/REUTERS

No Pants Day 2013

Participants of ”No Pants Subway Ride” wait for the train in Mexico City. HENRY ROMERO/REUTERS

No Pants Day 2013

People taking part in the No Pants Subway Ride wait to board the uptown 6 train in New York. CARLO ALLEGRI/REUTERS

No Pants Day 2013

Participants of ”No Pants Subway Ride” pose for a photo as they wait for the train in Mexico City. HENRY ROMERO/REUTERS

No Pants Day 2013

A participant in the No Pants Subway Ride waits to board the uptown 6 train in New York. CARLO ALLEGRI/REUTERS

No Pants Day 2013

Participants of ”No Pants Subway Ride” ride on the subway in Mexico City. HENRY ROMERO/REUTERS

No Pants Day 2013

Participants of ”No Pants Subway Ride”wait for the train in Mexico City. HENRY ROMERO/REUTERS

No Pants Day 2013

People take part in the No Pants Subway Ride on the uptown 6 train in New York. CARLO ALLEGRI/REUTERS

No Pants Day 2013

Men swing on a pole in Union Square park after the No Pants Subway Ride in New York. CARLO ALLEGRI/REUTERS

No Pants Day 2013

People take part in the No Pants Subway Ride on the uptown 6 train in New York. CARLO ALLEGRI/REUTERS

No Pants Day 2013

A woman reacts as people take part in the No Pants Subway Ride on the uptown 6 train in New York. CARLO ALLEGRI/REUTERS

No Pants Day 2013

A participant in the No Pants Subway Ride takes the 6 train uptown in New York. CARLO ALLEGRI/REUTERS

No Pants Day 2013

People take part in the No Pants Subway Ride on the uptown 6 train in New York. CARLO ALLEGRI/REUTERS

No Pants Day 2013

People taking part in the No Pants Subway Ride board the uptown 6 train in New York. CARLO ALLEGRI/REUTERS

No Pants Day 2013

People take part in the No Pants Subway Ride on the uptown 6 train in New York. CARLO ALLEGRI/REUTERS

No Pants Day 2013

People take part in the No Pants Subway Ride on the uptown 6 train in New York. CARLO ALLEGRI/REUTERS

No Pants Day 2013

A participant in the No Pants Subway Ride takes the 6 train uptown in New York. CARLO ALLEGRI/REUTERS

No Pants Day 2013

People take photos of participants in the No Pants Subway Ride in New York. CARLO ALLEGRI/REUTERS

No Pants Day 2013

People watch as participants in the No Pants Subway Ride take the 6 train downtown in New York. CARLO ALLEGRI/REUTERS