F.T. Island have begun the series of teasers leading up to their 5th mini-album 'The Mood'! They had already revealed a teaser image and the teaser site. Now, they have released a radio teaser video in which a pretty girl seems to be alone in the middle of nowhere with a painting easel and a radio playing out bits of F.T. Island's previous hit songs. In the latter half, a very soothing piano, guitar, and violin music enters the video, promising a beautiful melody for song "Madly," which will be released on November 18. Listen to it above and stay tuned for more updates!