New York City gets cheeky on the subway – literally.

On Sunday, hundreds of New Yorkers participated in the annual No Pants Subway Ride event. The event started 15 years ago as a prank by a group of seven friends who thought it would be funny to ride the subway without wearing pants. Since then, it has become an internationally celebrated event.

RELATED: All you need to know about this Sunday’s No Pants Subway Ride

Check out some of the action from this year’s No Pants Subway Ride in New York City.