Blueprints

 is a song from "Phineas and Ferb Interrupted" sung by Baljeet, Buford, Candace and Isabella to bring Phineas and Ferb their personality back, and Heinz Doofenshmirtz also sings in the song to for his own inator with Perry help.

Lyrics
Baljeet: With these blueprints we can make a mighty tower,

Isabella: With these blueprints we can mold a chocolate ball!,

Buford: With these blueprints we can forge enormous yo-yos,

Buford and Candace: With these prints we can build anything at all!

Doofenshmirtz: We've got blueprints, glorious blueprints!

They give us endless potentialities!

We could build an android porcupine,

bionic hearts for Valentines,

or giant dogs with artificial fleas!

Candace: 'Cause we've got blueprints!

Baljeet, Buford, Candace, Isabella: Glorious blueprints!

Doofenshmirtz: They make the things we dream reality!

Baljeet, Buford, Candace, Isabella: We can build jet powered water wings,

a catapult with mattress springs,

and practically anything you see!

Candace, Isabella, Doofenshmirtz: We've got one prints, two prints,

nothing we can't do prints!

Three prints, four prints,

everyday it's more prints!

Five prints, six prints,

nothing we can't fix prints!

Big prints, small prints,

make anything at all prints!

Baljeet, Buford, Candace, Isabella, Doofenshmirtz: There's nothing we can't do,

as long as they're blue!

So get some hammers and nails,

and buckets and pails!

So grab a two-by-four,

'Cause we've got blueprints galore!

We've got a lot of work to do!

Baljeet: With these prints that are blue!

Background information

 * This was seen in the promo for "Phineas and Ferb Interrupted".
 * This is one of the very few songs that have the characters from both plots singing the same song, the other being "Busted".
 * First time in Season 3 that Isabella has a solo line.
 * A robotic dog was mentioned, though it is not Rover. ("Canderemy")
 * This song sounds similar to the Armor Hot Dogs jingle.
 * First time Buford and Baljeet sing in Season 3.