The Phineas and Ferb Sing-Along Episode

The tenth episode of Season 37. Monogram and Doofenshmirtz host a sing-a-long, filled with Season 1, 2, 3, and 4 episodes.

Songs Included
In order
 * Gitchee Gitchee Goo from "Flop Starz"
 * Backyard Beach from "Lawn Gnome Beach Party of Terror"
 * Spa Day from "Spa Day"
 * Give Me a Grade from "The Baljeatles"
 * S'Winter Wonderland from "S'Winter"
 * Little Brothers from "Phineas and Ferb Get Busted"
 * Candace Party from "Candace Gets Busted"
 * Football X-7 from "My Fair Goalie"
 * The Way of the Platypus from "Doof Dynasty"
 * Van Stomm's Rule One from "Bully Bust"
 * What Is This Thing? from "Blackout!"
 * Watching and Waiting from "Don't Even Blink"
 * He's a Bully from "Raging Bully"
 * Zubada from "Tri-Stone Area"
 * I Love You Mom from "Mom's Birthday"
 * Carpe Diem from "Rollercoaster: The Musical!"

The "Too Young" Line

 * Doofenshmirtz: "Aren't we a bit old to be hosting a kid's sing-along?"
 * Monogram: "No. No we're not,"

Ferb's Line
Only in some of the songs

Whatcha Doin
Carl

Perry's entrance to lair
None seen

Evil Jingle
Doofenshmirtz hosts a sing-along!

Continuity

 * Doofenshmirtz mentions hosting a clip show and not liking it ("Phineas and Ferb Musical Cliptastic Countdown")
 * Doofenshmirtz brings up Katherine ("Katherine v.s. Doofenshmirtz")
 * Monogram wonders about his parachute pants ("Spa Day")
 * The Please Stand By screen with Perry on it is used again ("The Secret of Success")
 * Doofenshmirtz mentions wanting to trap Perry in a snow globe ("Journey to the Center of Candace")
 * Monogram says his world is just a screen ("Rollercoaster: The Musical!")
 * Monogram mentions a kid being allergic to soup ("No Soup For You!")

Allusions

 * VeggieTales: Doofenshmirtz brings up a crybaby cucumber in an ice cream parlor for a sing-along
 * Disney Sing-Alongs: Monogram mentions singing songs about theme park attractions