Yippy Ki Yi Yay!

This song is from the episode "The Beak". It plays while Phineas and Ferb take the Beak suit for a test drive on their skate ramp. After the song, it was shown that the music was coming from the suit itself.

Lyrics
One, Two, Three, Four

Catch me if you can

I'm like a bullet, man

On the edge of my seat

By the skin of my teeth

Wheeeee!

Yippy Ki Yi Yay!

Wheeeee!

Yippy Ki Yi Yay!

Wheeeee!

Yippy Ki Yi Yay!

Wheeeee!

Yippy Ki Yi Yay!

Wheeeee!

Yippy Ki Yi Yay! (fades away)