"Flop Starz" is the third broadcast episode of the American animated television series Phineas and Ferb.1 The episode was originally broadcast on Disney Channel on February 1, 2008. In the episode, Phineas and Ferb become one-hit wonders in a morning, much to the disappointment of their sister Candace, who is trying out for the talent show The Next American Pop Teen Idol Star! Meanwhile, Doofenshmirtz converts his building into a giant robot to aid him in his attempt to conquer the Tri-State Area.

Phineas and Ferb is an American animated musical-comedy television series created by Dan Povenmire and Jeff "Swampy" Marsh that aired on Disney Channel and Disney XD for four seasons between 2007 and 2015. The series follows stepbrothers Phineas Flynn and Ferb Fletcher during summer vacation. Every day, the boys undertake the construction of a grand project, or embark on a spectacular adventure, to make the most of their time on vacation. This annoys their controlling older sister, Candace, who frequently tries to expose their schemes to her and Phineas's mother. The series follows a standard plot system; running gags occur in every episode.