"Carl, the Intern" is a song sung about Carl Karl as Agent P's backup. He was riding an ice cream truck and snatched Perry after the ride. Its first version was sung in the episode "Swiss Family Phineas" and, in the later episode "Undercover Carl", another version known as "Carl, Incognito" was played which include Carl alternating disguises and costumes. The song was also heard in "I Was a Middle Aged Robot" and "Tri-State Treasure: Boot of Secrets".
Carl, the InternEdit
He works a camera!
He knows what all those buttons do!
He'll clear the paper jam!
And he'll pick up the laundry, too.
He knows how to format, spell check and text edit.
He's workin' this job just for college credit!
He's Carl, the intern!
Dressed as a cheerleader!
Now he's wearin' a pinafore!
In his pajamas!
Now he's a guy from the Civil War!
Dressed as a cowboy or an old steel worker,
And now he's the lead in a '40s tearjerker!