That's right! Says this MySpace page:
What is “Thrill the World”? On October 25th 2008, zombie dancers around the world will simultaneously dance the THRILLER dance in an attempt to break a World record. The central time zone (St. Louis) will dance at exactly 1:00pm on Saturday, October 25th. The Mid-County YMCA is the official location for the St. Louis “Thrill the World” event!