Red, Orange, Yellow

Red, Orange, Yellow is a song from "The Factory" performed by Gumball, Darwin, and several Rainbow Factory workers, first when Gumball and Darwin discover what rainbows are made of, and a shorter one after they save the factory.

Lyrics

 * Let’s find out how they put these magic colors in the sky.
 * With unicorns, pixies, candy cane and apple pie.