Follow me on Twitter: Song: Perry The Platypus Theme Song By: Randy Crenshaw Episode: (Rollercoaster) Dont forget to watch my .\r \r From the new soundtrack! Like and comment! Lyrics: Doo-bee-doo-bee-doo-bah Doo-bee-doo-bee-doo-bah Doo-bee-doo-bee-doo-bah .\r \r Phineas and Ferb Soundtrack lyrics- Back Sactters: Doo-Be Doo Be Do-Ba Doo-Be Doo Be Do-Ba Doo-Be Doo Be Do-Ba Doo-Be Doo Be Do-Ba Female .\r \r Perry The Platypus Extended Edition Artist: Randy Crenshaw Album: Phineas and Ferb: Across The 1st and 2nd Dimensions Note: Sorry for the timing, but the .