What begin as a prank in New York around 15 years back, is now an event on the global calenders as passengers drop trousers around the world (Photo: AP)
Young people riding on the subway with no pants on as they join a global happening in Warsaw, Poland (Photo: AP)
A subway rider goes pantless during the annual No Pants Subway Ride (Photo: AP)
Young people with no pants wait for the subway train during the event 'No Pants Subway Ride' in Berlin, Germany (Photo: AP)
Rina Wang, 20, left, shares music with friend Tiffany Amaro, 20, as they wait for the R train during the annual No Pants Subway Ride (Photo: AP)
Steven Blomquist, of Somerville, Mass., center, speaks with Tim Lewis, of Boston, right, while wearing no pants as they ride a subway train during the event in Boston (Photo: AP)
Passengers brave the chilling winter prepare to take part in the No Pants Subway Ride in Prague, Czech Republic (Photo: AP)
A passenger not wearing pants takes part in the No Pants Subway Ride in Prague, Czech Republic (Photo: AP)
A man explains why he is pantless to a woman on the subway platform at the Union Square station after participating in the annual No Pants Subway Ride in New York (Photo: AP)
From New York to Warsaw, travellers brave the freezing weather.