Hey Ferb

Hey Ferb (I Know What We're Gonna Do Today) takes place during the introduction of "Rollercoaster: The Musical!". It is sung by Phineas. First acknowledged by Dan Povenmire at the Phineas and Ferb Comic Con Panel (July 2010), it is one of the many musical numbers that appear in the special.

Lyrics
Phineas: I know what we're gonna do today,

though it might sound just a bit cliché.

We can build a rollercoaster, but this time with songs and dancing!

'Cause when we're back in school come next September,

And they ask us, we can both remember

Every cool and clever thing we did all summer long, and glancing

back we're gonna be so glad that we

didn't sit all day and watch TV,

I don't think anyone can disagree

the world is possibilities

And that's what makes me say:

Phineas and Chorus: Hey Ferb! Phineas: Hey Ferb, I know what we're gonna do today

Hey Ferb, I know what we're gonna do today

Hey Ferb, I know what we're gonna do today!...

Phineas and Chorus: Hey Ferb!

Background singers:Boredom is something that I will not put with with.

Phineas: Hey Ferb, I know what we're gonna do today

Hey Ferb, I know what we're gonna do today

Hey Ferb, I know what we're gonna do today!...

Phineas and Chorus: Hey Ferb!

Phineas: Hey Ferb, I know what we're gonna do today

Hey Ferb, I know what we're gonna do today

Hey Ferb, I know what we're gonna do today!...

'Background singers:Boredom is something that I will not put with with.

Phineas and Chorus: Hey Ferb!

Phineas: Hey Ferb, I know what we're gonna do today

Hey Ferb, I know what we're gonna do today

Hey Ferb, I know what we're gonna do today!

Hey Ferb!