" The Korean wave of popular culture is called “Hallyu.” You should learn the word, since you’ll be seeing a lot of it. U.S. President Barack Obama referred to it during a March 2012 visit to South Korea, in the context of discussing the nation’s technical and pop culture innovations. He said: “It’s no wonder so many people around the world have caught the Korean Wave—Hallyu. "
― , The Birth of Korean Cool: How One Nation is Conquering the World Through Pop Culture