The Doofenshmirtz family has a tradition of hiring groups of identical-looking women to perform as background singers when they they are singing. They are typically young, attractive and blonde.
Heinz Doofenshmirtz has hired women like this for the following songs:
- Impress My Professor, describing his troubles as a youth being taught and mistreated by Dr. Gevaarlijk. ("Oil on Candace")
- Charmed Life, where he as Emperor in an alternate future answers the question "how does it feel to wield such absolute power?" ("Phineas and Ferb's Quantum Boogaloo")
Background Information Edit
- Heinz attempted to flirt with one of the singers as he was paying her, but she simply walked away without a word. He was not phased by this, telling Agent P, "I think I got a shot there." ("Oil on Candace")
- The singers wore stockings and Vaudeville-style hats for Charmed Life ("Phineas and Ferb's Quantum Boogaloo")