ST. LOUIS (KSDK) - Cold temperatures couldn't stop some people from putting on a show.

They hopped on MetroLink Wednesday night without wearing pants!

STL Improv Anywhere hosted the event, and participants got off the train downtown and met at Pi Pizzeria for a happy hour.

Pants-less riders were asked to read a book or listen to their iPod and act as if nothing unusual was going on.

The "No Pants Subway Ride" is an annual global event started by Improv Everywhere in New York in 2002.

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