The Sixth Alicorn

The Sixth Alicorn is a chapter in When the Cold Breeze Blows Away. In this chapter, the newly-alicornified Big McIntosh is being coronated as the sixth alicorn ruler of Equestria, making him the first Prince of Equestria since Princess Celestia's reign for the past millennium.

Trivia

 * Big McIntosh's coronation outfit wears the same wedding suit that he wore in "The Big Mac Question," including the same royal regalia that he wore in "Do Princesses Dream of Magic Sheep?"
 * The Mane Six, including Princess Celestia, Princess Luna, Princess Cadance wear their coronation dresses from "Magical Mystery Cure," whereas Shining Armor wears the same royal uniform in the same episode, including "A Canterlot Wedding."
 * Rainbow Dash wears a black business suit with a white dress shirt and a blue necktie instead of a dress to reflect her tomboyish personality.
 * Applejack even wears a prince uniform (despite being a female) to represent the moment that Canterlot royalty will be connected with the Apple family.
 * The song "Behold, Prince Big McIntosh," is played in tune of "Behold, Princess Twilight Sparkle," which is also played for the very first time in this story, foreshadowing the tune of the national anthem of Gerasecia, "God Bless Gerasecia." It's written in different lyrics about the country.