Chapter 1

Major Monogram and Heinz Doofenshmirtz host a reader's choice top 14 musical countdown from season 1 of Hira's Adventures with a genius girl named Hina, while Doofenshmirtz disguises his Musical-Video-Mind-Control-Inator as a Musical-Videoclip-Inator, though Hina is doing some tinkering on it for some reason.

Note: Season 2, Episode 4, During Hira and Hiro Stays With Phineas and Ferb Storyline.