(Doo-doo-doo-doo
Doo-doo, doo-doo-doo...)

Phineas: Get out your tool case
Put on your game face
Get out your brushes - gonna paint this town
Let's just get rockin'
No time for talkin'
Just fourteen hours 'till the sun goes down

We've got one last day of summer
One more day before school has begun
One last day in the sun
Let's have some serious fun!

(Doo-doo-doo-doo
Doo-doo, doo-doo-doo...)

Every day of summer
We've given a hundred percent
But today, we'll give a hundred and one
Baljeet: But that is not mathematically possible...
Phineas: You know what we mean!
Baljeet: Yes, I understand: hyperbole

(Doo-doo, doo-doo
Doo-doo...)
Phineas: We set a precedent
For entertainment -
We're doin' somethin' and it's gonna be big
Put on your glad rags and pack a lunch bag
No, somethin' smaller - not that sucklin' pig

We've got one last day of summer
One more day before school has begun
We've got one last day in the sun
Let's have some serious fun!
(Let's have some serious fun...)
Let's have some serious fun!
(Let's have some serious fun...)
Let's have some serious fun!
(Let's have some serious fun...)

(Ooohh, yeeaaahh... !)