New York started No Pants Subway Day, but today at St Pancras station we'll have Pants Day or a Pant Flash. Hundreds of people will brave the weather to make the largest gathering of people wearing underpants. It kicks off at 9.30am this morning (Thursday 13th November) at The Betjeman Arms, a pub inside the new St Pancras International railway station, on the Upper Concourse.
I'd be surprised if people travel on the Tube in their underpants as it is a bit nippy today.
Full details of how to take part, plus the inevitable photo shoot at 10.30am are on the Pants to Poverty blog.
Perhaps this does mean we'll be getting closer to the first No Pants Tube Ride next year. It's just unfortunate that pants in the US and pants in the UK have different meanings as a No Pants Tube Ride would either lead to some serious chafing with people going commando. Or some arrests for indecency - if you really wanted to display yourself properly.
UPDATE - It's official the Pants people are record breakers - see the video on CNN!