Phineas and Ferb - Taking on the Big Brain Lyrics

Taking on the Big Brain is a song from "Cranius Maximus" which is sung when Phineas, Ferb, Buford and Isabella tries to take down Baljeet through jet packs because he suddenly views everyone else as beneath him and becomes a threat to civilization by taking Earth's atmosphere and bringing it to the moon due to the "Brain booster" helmet Phineas and Ferb made for him.