Make Play

As Phineas and Ferb construct a giant jukebox, Candace meets the princess Baldegoon of Druelselstein who happens to look exactly like her and they decide to switch lives. Meanwhile, Doofenshmirtz tries to ruin his brother's 'Drueselstein Favorite Son' ceremony by dumping something on it with his claw made of claw machines.

Songs

 * First verse of Do Nothing Day.

The "Too Young" Line
None.

Perry's entrance to his lair
Perry uses a jack to go down to his lair.

Evil Jingle
Doofenshmirtz Evil Incorporated!

Background Information

 * This might take place near the end of summer since there are Back to School sales.
 * This episode aired in Latin America as "La Doble" ("The Double") in Spanish. It aired as "Brincando de Princesa" ("Playing Princess") in Brazilian Portuguese.

Continuity

 * This marks the second appearance of Jeremy and the Incidentals. ("The Best Lazy Day Ever")
 * The second time we see "two Candaces" ("Split Personality")

Allusions

 * The concept of a commoner and royalty switching places comes from Mark Twain's story The Prince and the Pauper.

Cast

 * Vincent Martella as Phineas
 * Ashley Tisdale as Candace
 * Thomas Sangster as Ferb
 * Caroline Rhea as Mom
 * Mitchel Musso as Jeremy
 * Dan Povenmire as Dr. Doofenshmirtz
 * Jeff "Swampy" Marsh as Major Monogram
 * Richard O'Brien as Dad
 * Dee Bradley Baker as Perry
 * Alyson Stoner as Isabella
 * Kelly Hu as Stacy
 * Olivia Olson as Vanessa
 *  designates a character that did not appear in this episode