Sia, 41, is an Australian singer/songwriter by day, and a magical pony by night, as it turns out. “Rainbow,” which appears on the soundtrack for My Little Pony: The Movie (Oct. 6), is simply gorgeous ...

My Little Pony: The Movie is coming to theaters soon, and there is nothing we can do to stop it. All kidding aside, my daughter is more excited about this than I thought she was capable of being, and ...

Did you know there’s a My Little Pony movie coming out? Sia is in it—she voices a pop star pony with an unruly black-and-white mane. She also contributed an uplifting song called “Rainbow” to the ...