What happens when Justin Bieber's backup dancer's flight gets cancelled? Of course they have to dance.

I have never been to a Justin Bieber concert, but these kids are actually really talented dancers. I can barely dance on a floor let alone a soft airport chair like these kids do.

The best part of the video is all the old people walking by. Their faces are absolutely prices trying to figure out what is going on. Also where was TSA when this was going on. I am sure they got some calls.

Check out the Flash Mob below: