Background Voice: It's spa day,
day to unwind.
We'll walk on your spine.
We'll be kind. 

Background Voice/Ferb: It's— 

Ferb: Spa Day!
Phineas: Yeah!
Ferb: P 'n on the scene!
Gonna slather you with mud and make you feel like a queen.
Got you sittin' in the hot tub.
Fireside Girls: Loungin'!
Ferb: You're thinkin' this place is a—
Fireside Girls: —stoundin'!
Ferb: Hot steam! Hot stones! Hot water! Hot wax!
We're pipin' cool new age music, can't help but relax!