The origins of the episode come from a conversation between Jane O'Brien and Mike Scully, when the two were talking about how girls always want to grow up so fast, as Scully has five daughters; so they decided to produce an episode with a storyline based on this.
At one point Alex tells Lisa "Don't be such a Phoebe". Alex was voiced by Lisa Kudrow who more famously portrayed Phoebe in Friends (1994).
When Willie enters the school kitchen he is whistling the Scottish traditional song "Loch Lomond"
Alex asks Sherri and Terri which is the evil twin. Lisa Kudrow who voices Alex played Phoebe on Friends (1994), who was a twin.