"Poor Little Rich Girl" is the thirteenth episode of The Suite Life of Zack & Cody.
Zack and Cody watch a video of them being born, but in the video, their mother might have mistaken them for each other, so they become the complete opposite of themselves. Meanwhile, London becomes poor after finding out her father went bankrupt from a failed investment of diamonds, so she stays with Maddie until her father can find a place for her to stay. At the end of the episode, Carey gets her sons' birth certificates from the hospital and tells which of her sons are which. Also London becomes rich again when Mr. Moseby tells her that her father struck oil in his diamond mine.
- Adrian R'Mante as Esteban, Estelle Harris as Muriel
- This marks the first time Zack and Cody's father and Carey's ex-husband, Kurt Martin's voice is heard, but he doesn't physically appear until "Dad's Back".
- Earlier in the episode, London reads the newspaper, even though she is established to be illiterate. She probably could tell what the paper said based on what Muriel said and the picture on the page.