The vocalist of the band is Hizumi. The band started to become very popular from the time that they released their first single. They also became known all over the world. In the year 2011, Hizumi started to have some throat issues. According to their official statement, this is something that Hizumi has suffered from for some time.
This has prompted the band decided to go on hiatus indefinitely. Over the past year, the other members decided that they just have to disband since they cannot sing anymore. There are times when they would do some reunion concerts and performances to the delight of the fans.