F.T. Island (FT아일랜드; also known as Five Treasure Island) is a South Korean K-pop boy band signed under FNC Entertainment. The band currently consists of 3 members: Hongki, Jaejin, and Minhwan. F.T. Island debuted on June 7th, 2007, with the single, "Love Sick" which was on the television program, M! Countdown.
F.T. Island made their Japanese debut on June 8th, 2008, with the extended play, "Prologue of F.T. Island: Soyogi". The band started getting recognition in the country following the release of their third Japanese studio album in 2011, "Five Treasure Island", which topped the Oricon Albums Chart. Additionally, the band is the first foreign male band in 42 years to top the Oricon Daily Charts.
On January 28th, 2009, it was announced that Oh Won Bin would be leaving the group, with FNC trainee Song Seung-hyun replacing him as a guitarist and a backup vocalist. With the new lineup changes, F.T. Island then released the music for their mini-album with the title song, "Bad Woman". It was promoted on SBS Inkigayo.
On March 14th, 2019, Jong-hoon left the group and retired from the entertainment industry. It was revealed that he was involved in the "Burning Sun scandal". On December 24th, 2019 it was announced that Seunghyun would leave F.T. Island and FNC Entertainment following the end of his contract on December 31st. Although, Hongki, Jaejin, and Minhwan renewed their contracts with their label.
On September 30th, 2019, Hongki began his mandatory military service, also becoming the first F.T. Island member to enlist. He was discharged from his mandatory military service on April 18th, 2021. Jaejin enlisted as an active-duty soldier on January 21st, 2020, while Minhwan enlisted on February 24th, 2020 as a reserve soldier.