A song in the end credits of Phineas Knows Vincent Martella: He's a triangle-headed Little boy of action! An optimistic redhead. With a Jupiter-sized brai-ai-ain! He has his building skills, And a sister who knows how to chill. He makes the Fireside Girls swoon Whenever they hear him say... (Phineas: The name's Flynn. Phineas Flynn!) (Fireside Girls fainted.) He's Phineas! Also called Agent Phin! A-Gent Phin! (song ends)