Sung by Ferb in the episode
De Plane! De Plane! Here are the lyrics -
When we lift off then you'll be tipped off to
How my heart, it soars for you!
Soon you'll be flyin', gravity defyin',
Your dreams will all come true! In the blue!
Flyin' over cotton-candy clouds,
Hangin' from a fuselage,
A walk on a wing is just the thing
For a high-in-the-sky montage!
So darlin', put your goggles on,
And up-up-and-away we'll fly!
In a big ginormous airplane,
In a big ginormous airplane,
In a big ginormous airplane,
In the sky!