And EW has your exclusive first look.
They dress up as brother-sister duo Donny and Marie Osmond in their classic Deep Purple ensembles.
Meanwhile, Sue is doing something a little more literal.
Michael Ansell/ABC
So Sue just leans and goes full third wheel for Halloween literally.
We knew if we didnt do them now, wed never do them.
The Middleairs Tuesdays at 8 p.m.
Michael Ansell/ABC
Michael Ansell/ABC
