That's great; some good Toronto locations indeed, including every Toronto parent's favourite location at the end there - the chicken coop at Riverdale Farm. Was it just me, or did it look like half of the dancing was in front of a green screen, though?
I initially thought the same thing, but if you look closely all the background images are moving whether it has moving cars or leafs blowing in the wind. I think they filmed a location and then used that as the background for the green screen.
Either that, or they were all actually at each location and we've just all been subject to some sort of camera trickery.