Nahh, it's just fans who do this every year in Calgary (and elsewhere).

Called "Thrill the World" it's a zombie flash mob to MJ's "Thriller" They haven't posted this year's, but here is last year's. I love the "Zombie Cam" effect and the one little kid in all black on the side of the group who doesn't know the routine, but dances his/her heart out.

It's for a good cause too!

A zombie 'Thriller' dance mob in Calgary's downtown on October 27th 2012 -- part of a global world record attempt to set a new world record for the number of people doing the classic Michael Jackson dance. Part of the Sogo Active movement promoting fitness in young people and a fundraiser/drive for the Calgary Inter Faith Food Bank

I love this kind of thing. The mix of people is so cool. I love the kids. You're right, that kid in black is really gettng down.

We saw a huge group of raisins dancing to "I Heard it Through the Grapevine". Their bit was raisin money for St Jude's Children's Hospital.