This is for Zarri (Zarrian/ or zarri-of-the-vinkus). I tried my best with the parody!
Fiyero grinned. How did Galinda's little song go? "Popular… you're gonna be pop-u-lar…" he whispered. Then something hit him. Muscular… that has the same amount of syllables! I think…Wait… pop-u-lar… mus-cu-lar… It does!
He smiled again. "Muscular… I'm glad I'm so mus-cu-lar! I'm glad I get all the girls with the frills and curls; the one's that bounce around! Oh! I'm glad that I've got the huns who like my guns—!" Fiyero rearranged his face and stopped singing, trying to look normal as Elphaba unexpectedly came up.
"What are you doing?" Elphaba asked, horrified.
Fiyero sniffed. "Singing."
"Well, obviously. But… why!?"
Fiyero was quiet.
Elphaba rolled her eyes, and said, "Well? Cat has your tongue or something? You're being rude; talk to me."
"Well… singing is fun… don't you ever sing?" And he smiled innocently.