SS501 leader and Boys Over Flowers star, Kim Hyun Joong, has been diagnosed with swine flu. The singer turned actor was in Japan to promote his hit drama series over the weekend, from 5 - 6th September. During the promotions, he had shown signs of a fever and a headache, which caused him to miss his activities on the 6th. A representative from DSP Media gave a formal statement saying, "Kim Hyun Joong was scheduled for a flight, at 12pm on the 7th of September, he had passed through immigration without any problems but later in the afternoon, due to a sudden change to his health, he was taken to the emergency room instead." While in the ER, it was diagnosed that the star had swine flu, and the representative says that the star is being treated but has to remain under further observation for more tests, causing him to remain in Japan. Kim Hyun Joong's manager has been sent to the hospital to check on the matter and will inform the public with more details when available. It's not known whether his SS501 members and the other F4 cast were tested for symptoms of H1N1 upon arrival in Korea.