The iconic Japanese pop singer, Seiko Matsuda, has been gaining a significant amount of popularity in South Korea. The reason behind this surprising trend is unknown, but it is speculated that her timeless music and charismatic persona resonate with Korean audiences. This sudden rise in popularity is a contrast to the historical tension between Japan and South Korea, making it a uniqueness in the cultural exchange between the two nations.

Seiko Matsuda is a well known national icon in Japan, and her blooming popularity in Korea has generated quite a lot of buzz in Japanese media. While Japan and Korea have had difficult history and tensions in various contexts, people in Japan generally show interest in individual-level exchanges and achievements overseas.

A similar phenomenon in US or EU would be when veteran singers or artists from one country gain popularity in another. For example, when a British rock band becomes popular in the US, or a French artist gains followers in Germany. However, it should be noted, there may not be a direct parallel due to the unique cultural and historical contexts between Japan and South Korea.