User blog comment:AnimeQueen97/Random Bronyness/Pegasisterness: Celestia sings, the return of Vinyl Scratch/DJ Pon-3 and Derpy (Quick return appearance) AND Princess Twilight!/@comment-5206590-20130223230520/@comment-4410192-20130223231036

Well of course we saw Twilight Alicorn coming, ever since her Bro married Cadence, she's now in the family royalty, making Cadence her sis-in-law. And correct me if I'm wrong, but it's kinda like the Kuchiki family thing (Bleach ref)