https://www.upi.com/News_Photos/lp/63ee78fa101b71742c92433f3397887a/https://www.upi.com/News_Photos/view/upi/63ee78fa101b71742c92433f3397887a/9th-Annual-No-Pants-Metro-Ride-in-Washington/News, Metro, No Pants Metro RideUPIUPIhttps://cdnph.upi.com/pv/upi/63ee78fa101b71742c92433f3397887a/No-Pants-Metro-Ride.jpg
An organizer holds a rules sign prior to the 9th Annual No Pants Metro Ride, in Washington on January 10, 2009. The group Improv Everywhere organized the international event which had participants in 44 cities in 16 countries. UPI/Kevin Dietsch