F.T. Island is a South Korean rock band formed in 2007 under FNC Entertainment. The group originally consisted of five members: Hongki, Jaejin, Seunghyun, Minhwan, and Wonbin. They gained popularity for their catchy songs and energetic performances, blending rock with pop elements. The band's debut album, "Cheerful Sensibility," was released in 2007 and included hit tracks like "Love Sick." Over the years, F.T. Island has released multiple albums and singles, earning a dedicated fanbase both in South Korea and internationally. They are known for their musical versatility and engaging live shows.