Ca sĩ: Sheena Easton

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Female Singer: She's a semi-neurotic, teenage girl of action!
Backing scat: (Dooby dooby doo-ba, dooby dooby doo-ba)
Female Singer: She's a feisty little redhead with a platypus' brain!
You best leave her alone,
She's playing MP3s on her phone!
And whenever she's around, you can hear the bad guys say!
Doofenshmirtz: Great, now I have this song stuck in my head!
Female Singer: She's Perry, Perry the Teenage girl!