What Is This Thing? is a song from the Season 3 finale episode Blackout!, sung by Fee Waybill, when Candace was riding Phineas and Ferbs unseen .\r
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Link to part 2!- Enjoy, and leave comments about what you think! These are my personal top 45 Phineas and Ferb .\r
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Every Phineas and Ferb song, in order by episode! If any videos are missing/have been deleted, let me know and Ill find a replacement. Enjoy!!
