- Dave the Barbarian (from Dave the Barbarian) as Herry Monster
- Too-Tall (from The Berenstain Bears) as Oscar the Grouch
- Big Mouth (from Peg + Cat) as Cookie Monster
- Elliot Moose (from Elliot Moose) as Grover
Dave the Barbarian: (spoken) Hey, Too-Tall, Big Mouth, Elliot! It's time to sing the song about the letter that comes after "E"!
Too-Tall: (spoken) I don't wanna do this icky, crummy, lovey-dovey old F song!
Big Mouth: (spoken) C'mon lets all sing together.
Dave the Barbarian: (spoken) All those words that start with the letter F!
Dave the Barbarian, Too-Tall, Big Mouth and Elliot Moose: Four furry friends. Frolicking fellows.
On Friday afternoon. (afternoon)
4 furry friends, frankly affectionate,
They sing the future soon. (future soon)
Faithful, fearless, friends for forever.
Fabulous, fun, family. (Family, family)
4 furry friends, faithful together.
Fun-filled, and forever free. (Forever free)
Dave the Barbarian: (spoken) F is the letter that brings us together.
F is fun. F is famous.
And together our friendship will forge forward.
Thanks to that fantastic letter F.
Dave the Barbarian, Too-Tall, Big Mouth and Elliot Moose: Four furry friends, faithful together.
Fun-filled, and forever free. (Everyone: Ever free!)
Too-Tall: (spoken) Boy, I really hated that!