Twilight's Kingdom, the grand finale to season 4 of My Little Pony, Friendship is Magic, is so big, so significant, and so long-awaited, that The segundo Opinion is going to need a second, ahem, man.
I was just noticing how fantastic the animación is for this song. All the zooming in and out, the spinning, panning, etc. makes for an interesting visual. Not only is this a fabulous song, but it's an excellent video!
