It was season 5 episode 24 (or should i say with Countess Coloratura episode). The rest of the episode was really awesome and when Countess Coloratura turned into Rara and plays on the piano, she sang her song "The Magic Inside". When i heard her singing her song, my heart was ...
Well, it was a show on Netflix I was into when I was younger my first episode was season 1, episode 7 Dragonshy, and then I had no way of watching MLP for a while because back then I lived under a rock and my family got rid of Netflix, and then I rediscovered MLP on Netflix...