Almost 300,000 people have clicked attending to the Facebook event, which is quite a feat considering it was started on a lark by a St. Catharines, Ontario dad.
Chris Drennan set up the event earlier this month. After initially launching it as a private affair, he set it to public and it proceeded to blow up.
There's no actual ~plan~ per se for attendees (Drennan will probably be putting his kids to bed when the results roll in) so all those thousands of people are free to party as they see fit.