Linda Flynn-Fletcher (voiced by Caroline Rhea) is the mother of Phineas and Candace, and stepmother to Ferb. She prefers to use both her maiden and married last names, as shown on her voice mail in the episode "Phineas and Ferb's Hawaiian Vacation". However, other characters frequently call her "Ms. Flynn" (Phineas and Candace's last name). She was, however, referred to as "Mrs. Fletcher" by Isabella in "Candace Loses Her Head" and again in "Hip Hip Parade". Although Jeremy called her correctly in the episode, "Atlantis", (Quote: And here are the Flynn-Fletchers....-Jeremy Johnson)) Linda also used to be a famous pop star: as first seen in "Flop Starz" (and was revealed in several other episodes). she was a one-hit wonder known as "Lindana," singer of "I'm Lindana and I Wanna Have Fun" which is sometimes used as elevator music throughout the series. Linda went on a date with Dr. Heinz Doofenshmirtz in a flashback in "What Do it Do?", only to reject him when he broke the movie screen. She is also the one who gave him the idea of conquering the tri-state area (to give him a start on conquering the world), although this was accidential and is currently unaware of Doofenshmirtz.