Following in the footsteps (or hoofsteps?) of Zootopia’s Shakira, Sia has signed on for a role in the upcoming My Little Pony movie. She will play the pop-star pony Songbird Serenade, and will also contribute two original songs to the soundtrack. Other cast members to soon get devoted brony followings include Liev Schreiber, Taye Diggs, Emily Blunt, Kristin Chenoweth, Uzo Aduba, and Michael Peña. My Little Pony: The Movie opens on October 6. For Melania Trump’s sake, let’s hope Sia’s lines aren’t too “Unforgettable.â€