Rollercoaster: The Musical!

Episode Summary
The boys set out to re-create the day of the rollercoaster that also served as the show's pilot, only this time they’ll spontaneously break out in songs. Each of the show’s catch-phrases will have their own songs in the special episode. 

Songs
Ferb, I Know What We're Going to Do Today (possibly)

Hey, where's Perry? (possibly)

Whatcha Doing?

Oh, There You Are, Perry (possibly)

Aren't You A Little Young... (possibly)

Perry's entrance to his lair
None.

Continuity

 * This is the 5th time they build a rollercoaster. ( "Rollercoaster", "One Good Scare Ought to Do It!", "Fireside Girl Jamboree", "Phineas and Ferb-Busters")

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