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My Little Pony: Friendship Is Magic Season 1 Episode 10

Princess Celestia is coming to visit, and everyone in Ponyville is making sure everything is perfect for her arrival, especially Twilight. Unfortunately, trouble arises when a swarm of parasprites, adorable insects with ravenous appetites, invades the town. And they are multiplying by the second! Pinkie Pie claims to have a solution to this problem, but no one really knows why she is gathering various musical instruments to do it.

Episode Title: Swarm of the Century

Air Date: 2010-12-17