3) Jessica and Krystal

Jessica is a former member of SNSD (Girl’s Generation), and her younger sister Krystal debuted in SM Entertainment’s girl group f(x). Both are Korean Americans who ended up moving back to Korea to pursue their entertainment careers. In 2014, Jessica was dismissed from the group forcibly apparently because of some of her business activities in the fashion industry. You might also have seen them in several movies and TV shows. Notably, Krystal was featured on the Korean TV drama Heirs.