Background Voice: It's spa day, A day to unwind, We'll walk on your spine, We'll be kind... Background Voice/Ferb: It's— (The song turns into a seaweed rap tune) Ferb: Spa Day! Phineas: Yeah! Ferb: P & F 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! (relaxing music plays)