Train commuters around the world took part in No Pants on the subway.
Passengers took their pants off in London, Berlin, and Stockholm for the 13th annual No Pants Day.
No Pants started out as a prank, but has now become a global event.
Pant-less commuters braved the weather to participate in this annual phenomenon. Despite the cold weather they still went out and took their pants off.
The goal is to keep their pants off the whole time while keeping a straight face. Although, commuters had no pants on, they were still wearing winter clothes such as hats, scarves and coats.
The pant-less craze started in 2002 where a few New York pranksters decided to take their pants off in a subway train.