After Cera explains to the others that she knocked some rocks down by accident, and frightened the belly draggers away, they misunderstand, and believe that she planned to do so. Word quickly spreads throughout the Great Valley of Cera's supposed courageous deed, and the adults all express their delight by showering Cera with treestars as she and her friends walk down a "hallway" created by two rows of trees, during which time the song is sung. This song has the tune of Beyond the Mysterious Beyond.
The song, "The Amazing Threehorn Girl" is the first and only song joining "Is It True She Lied" as the second and only song which the adults get to sing in the episode, "The Amazing Threehorn Girl" because Petrie tells them that Cera is a hero for frightening the Bellydraggers away by setting off a rock slide by accident before getting away as her friends called the adults for help.
Chorus of adult Dinosaurs'
Hail the amazing threehorn girl
She drove the sharptooth all away
Her mighty courage saved the day
She is our hero now
Who would have thought a task so big
Could be done by one so small
But now we know she's strong and brave
she really has it all
Chorus of adults
So hail the amazing threehorn girl
Amazing threehorn girl
And tell her story near and far
Because of how impressed we are
She is our shining star
The amazing threehorn girl
All hail, the amazing threehorn girl