Oricon announced the news on its homepage on February 14, with the headline, "Super Junior's Kyuhyun ranks #1, the first foreign group member to do so". Kyuhyun released his 1st full Japanese album 'ONE VOICE' this past February 8, topping the Oricon daily album chart on the day of its release also.
The album contains 10 songs total, including Japanese version of Kyuhyun's hit titles like "At Gwanghwamun", "Blah Blah", and more. The idol is also currently on his Japanese tour, 'SUPER JUNIOR-KYUHYUN JAPAN TOUR 2017~ONE VOICE~'.
Congratulations to Kyuhyun!