Everypony has a dark side, even Princess Celestia. Everypony has a weakness.

Illya Leonov's (Morgan Freepony) audiobook of the short story "Celestia's Dark Side" by Voxum. Original story at: https://www.fimfiction.net/story/4704... 

 Narrator: Illya Leonov (Morgan Freepony) - https://www.youtube.com/c/IllyaLeonovMorganFreepony

Celestia:  Teresa Garcia - https://www.youtube.com/user/Amehana 

 Luna: DoodleJinx - https://www.youtube.com/channel/UC8H2wZwH6mpMMbdxjOzK1fA