The theme song for Philbert plays in place of the regular opening credits in The Showstopper.
Well I’ve been down to the Girlie Club
With a hot glue gun full of beans
Shot the bean on the railroad tracks
(Muttering) know what I mean?
I’m a man out of time
And time keeps running me down
Cause rules are for fools
And I ain’t no clown
They say the devil is a woman
But I ain’t no clown
- The theme plays in The Showstopper because the line between BoJack's role in Philbert versus what is actually happening, in reality, starts to become blurred due to his drug addiction.