Meh, don't worry about the reference being ten years out of date. The show's made in Canada--the eighties only just got there in '93, and the nineties in about 2004. In one episode of
Pony Life, a bored Applejack went out and got
The Rachel, which is, what, three decades old, almost? It might have also been a nod to Miley Cyrus, whom Applejack's voice is based on, frequently reinventing herself. Just be thankful she didn't go to a branding parlor and get her pasterns tattooed up... [
a la Snagglepuss] or her fetlocks, even!
As for Sia, the only song I know by her is that one where she says, "I ain't got cash, I ain't got cash", and that's only because for years I misheard it as "I ain't got
gas, I ain't got
gas", and boy, did I feel like the world's biggest a-hole when I figured that'un out. Hey, maybe A.J. and Songbird can cut a duet together sometime... I already got a good title for a country/pop fusion: "You Can Make Love On Your Side If Your Tummy's Full".