Under High Mountains and Rainbow Low Seas is a song in The Wonderful World of Utility.

A scene from the song
Lyrics[]
Voice: Pass the left pudding and train track pens, please
Voice: Under high mountains and rainbow low seas
A clip shows Evan and Rocket running, then it zooms out and shows them running in a spinning circle. The circle turns into a cannon and blasts them out.
Voice: Sleeve to your cough and fist to your sneeze
Voice: Under high mountains and rainbow low seas
A clip shows the picture, and Rocket falls through the third platform.
Voice: 'Cause you got-ta know
Voice: That everything comes so
Voice: To this and that
Voice: From chicken fat
Evan swings across a gap to another platform on a vine, but the vine pulls out a button that makes the platform crush him.
Voice: Stop pulling that monkey
Voice: Stuff goes in the barrel
Voice: And stop throwing that bellboke past Randy Darrell
Randy Darrell caught the bellboke.
Randy: I got it!
Some upside-down football players tackled him. One of their helmets pop off and roll across the ground, then it turns into a soccer ball and a soccer player kicks it up in the air. It rips the corner, then the whole scene tears off, revealing Evan and Rocket running on a platform and dodging strange obstacles like ullpins and frilljikkagetphias.
Evan: Well this is awkward!
Voice: You gotta friend in me. You gotta friend in me!
Evan: You can't use songs from Toy Story 2. That's stealing!
Voice: Fine. I'll sing my own material.
Voice: 'Cause everybody has to know
Voice: We'll get there so
Evan and Rocket run through locations like rollercoasters, parks, trees, and others.
Voice: Cause we're going under high mountains
Light shines in a square on a tree.
Voice: And un-un-unnnnnnnn--------der low seas.
Duh-duh duh duh duh-duh duh daaaahhh!
Evan presses a button on the tree which makes a door open. Evan and Rocket both walk in, then the light rises up. Inside the tree, they both walk out, not sure what to discover.
Evan: What will we discover?
Voice: Yeah!
THE END