What's behind 'My Little Pony' phenomenon?

I don't see a lot of people taking about this special that takes place around season 8-9 in the show. If you haven't seen it I suggest you do on some website

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10 years ago, a lesson in friendship Sparkled a Magical Equestrian Phenomenon! (My Little Pony: Friendship is Magic)

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A Star Wars/My Little Pony Mash-Up [VIDEO]