Stacy's cousins are seen when Phineas and Ferb stopped by Tokyo during their travel around the world. When they visited Stacy's relatives it is revealed that Stacy has many cousins. The relatives then start to sing "J-Pop (Welcome to Tokyo)", during which Phineas asks for some vegetable oil to refuel their plane and take off. Read more on Last.fm. User-contributed text is available under the Creative Commons By-SA License; additional terms may apply.