It's a Spa Day is a song in the episode "Spa Day", where it mixes hip-hop and alternate versions to demonstate the ultimately popular Spa which Phineas and Ferb built. This song was shown as a special preview at Comic-Con 2009.
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—
Ferb: Spa Day!
Ferb: P 'n 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)
It's a spa day.
Ferb: Thank you very much.
We got a salt scrub, a mud tub; what's it gonna be?
A foot bath, a facial, aromatherapy.
Phineas and Ferb: (both inhale deeply) Yeah...
Ferb: It's spa day!
Male Voice: Where ya from?
Masseur: I'm Pennsylvania-Dutch.
Ferb: Sippin' cucumber water and a big slice of lime.
Throw your clock away, you're on P 'n F time. It's a—
Background Voice: Spa day...
- This is the third song where Ferb sings in as solo.
- The beat of this song is heard in "Nerdy Dancin'" while Ferb performs hip-hop dance moves.