Season
Season 5 Episode
- Season 4 For Your Ice Only
- Season 4 Happy New Year!
- Season 4 Fly on the Wall
- Season 4 Bully Bust
- Season 4 My Sweet Ride
- Season 4 Der Kinderlumper
- Season 4 Sidetracked
- Season 4 Primal Perry
- Season 4 Mind Share
- Season 4 Backyard Hodge Podge
- Season 4 Bee Day
- Season 4 Bee Story
- Season 4 Great Balls of Water
- Season 4 Where's Pinky?
- Season 4 Phineas and Ferb's Musical Cliptastic Countdown Hosted by Kelly Osbourne
- Season 4 Knot My Problem
- Season 4 Just Desserts
- Season 4 La Candace-Cabra
- Season 4 Happy Birthday, Isabella
- Season 4 Love at First Byte
- Season 4 One Good Turn
- Season 4 Phineas and Ferb: Mission Marvel
- Season 4 Thanks But No Thanks
- Season 4 Troy Story
- Season 4 Druselsteinoween
- Season 4 Terrifying Tri-State Trilogy of Terror
- Season 4 Face Your Fear
- Season 4 Cheers for Fears
- Season 4 Steampunx
- Season 4 Just Our Luck
- Season 4 Return Policy
- Season 4 Live and Let Drive
- Season 4 Phineas and Ferb Save Summer
- Season 4 Father's Day
- Season 4 Imperfect Storm
- Season 4 The Return of the Rogue Rabbit
- Season 4 It's No Picnic
- Season 4 The Klimpaloon Ultimatum
- Season 4 Operation Crumb Cake
- Season 4 Mandace
- Season 4 Phineas and Ferb: Star Wars
- Season 4 Lost in Danville
- Season 4 The Inator Method
- Season 4 Night of the Living Pharmacists
- Season 4 Tales from the Resistance: Back to the 2nd Dimension
- Season 4 Doof 101
- Season 4 Act Your Age
- Season 4 Last Day of Summer
Phineas and Ferb - Season 4 Episode 15 Phineas and Ferb's Musical Cliptastic Countdown Hosted by Kelly Osbourne
7.90 48 minutes Dr. Doofenshmirtz and Major Monogram have their hearts set on revealing the top 10 musical numbers from Seasons 2 and 3, but soon find out that celebrity host Kelly Osbourne has been brought in to fill the role. Unwilling to submit to playing second fiddle, Doofenshmirtz makes it his mission to thwart Kelly until Perry the Platypus sets out to stop his nemesis from ruining the entire show. Maia Mitchell ("Teen Beach Movie") also guest stars.
