FTISLAND releases single "Theory of Happiness" today (5th)...Starting their first journey of the year
FTISLAND's Lee HONG-KI and ILLIT's Won Hee to make special appearance in new TV series "Spring of Four Seasons"...expectations rising
Kim Kyu Jong, sad profile... New start with Heo Yeong Saeng and Kim Hyun Joo (leader) as "FIVE O ONE"
