Question: What South Korean singer-songwriter, actor, writer, and fashion designer, was in the rock band F.T. Island that released their 5th album The Mood?

full_context: Document 1: Grown-Up (EP): Grown-Up is the fourth mini-album by South Korean rock band F.T. Island. It was released in South Korea on January 31, 2012, under FNC Music and distributed by Mnet Media. Filled with slow-tempo rock ballads, the album illustrated the musical growth of the band. Upon its release, the album and its single "Severely" (Korean: 지독하게 ) topped several music charts. The album debuted at number one on Gaon's weekly album chart and sold-out its initial 50,000 physically produced copies in ten days. The single peaked at number three on Gaon's weekly singles chart and earned F.T. Island several music television program awards, including three consecutive wins—dubbed a "Triple Crown"—on Joongang Tongyang Broadcasting Company's (jTBC) "Music on Top".
Document 2: Lee Hyori: Lee Hyo-ri (born May 10, 1979), is a South Korean singer, record producer, activist, actress and television presenter. Dubbed as the "Nation's Fairy" during her "Family Outing" days, she debuted as a member of South Korean girl group Fin.K.L, but has since become a solo artist. In 2003, she released her debut solo album "Stylish" which won several "Artist of the Year" awards. In 2006, Lee was the highest-paid female singer in South Korea when she signed a contract with Mnet Media.
Document 3: F.T. Island: F.T. Island (Korean: 에프티 아일랜드, or FT아일랜드 , Japanese: エフティー・アイランド; stylized as FTISLAND), also known as Five Treasure Island, is a five-member South Korean rock band formed by FNC Entertainment in 2007. The band consists of Choi Jong-hoon (leader, guitar, and keyboard), Lee Hong-gi (main vocals), Lee Jae-jin (bass and 2nd vocals), Song Seung-hyun (guitar, vocals, and rap), and Choi Min-hwan (drums and sub vocalist). Oh Won-bin left the group in 2009, and was replaced by Seung-hyun. They have one sub-unit, F.T. Triple (A3), consisting of Jong-hoon, Jae-jin and Min-hwan, but it has been inactive since 2012.
Document 4: Kim Jong-hyun (singer): Kim Jong-hyun (born April 8, 1990), better known by the mononym Jonghyun, is a South Korean singer-songwriter, and radio host. He is a vocalist of the South Korean boy group Shinee, and has further participated in S.M. Entertainment's project group S.M. The Ballad. Jonghyun debuted as a solo artist on January 12, 2015, with his first EP, titled "Base". In the same year, on September 17, Jonghyun released a compilation album, "Story Op.1". On May 24, 2016, Jonghyun released his first studio album, "She Is", followed by his second compilation album, "Story Op.2" on April 24, 2017.
Document 5: Cheerful Sensibility: Cheerful Sensibility is the first studio album by South Korean band F.T. Island, released on 5 June 2007. The album contains 13 songs divided into two sections: "Emotional Chapter" consists of rock ballads, while "F.T. Island Chapter" is made up of pop-rock songs written by Japanese composers. The album sold 79,000 copies and became the sixth most sold album of the year in South Korea. It was re-released on 3 December by the title "The Refreshment", with three new songs. The package included a Music 2.0 program, which enabled changes to the levels of vocals and instruments. It sold 25,724 copies.
Document 6: Lee Hong-gi: Lee Hong-gi (; ] ; Japanese:イ•ホンギ) is a South Korean singer-songwriter, actor, writer, and fashion designer. He is best known for his singing abilities and being the main singer of the South Korean rock band F.T. Island. Lee released his first solo extended play "FM302" in South Korea on 18 November 2015 and his Japanese album "AM302" on 9 December 2015.
Document 7: In Festive Mood: In Festive Mood is the third studio album by male voice choir from Wales Only Men Aloud!. The album was released in the United kingdom on 28 November 2011. The album only peaked to number 142 on the UK Albums Chart. The album was produced by Nick Patrick.
Document 8: 5.....Go: 5...GO is an album by South Korean rock band F.T. Island. It was released on 13 May 2015. The album was released to celebrate the band's fifth anniversary in Japan. The title track "Primavera" is a collaboration with Japanese rock singer Takahiro Moriuchi from One Ok Rock.
Document 9: The Mood (EP): The Mood is the 5th mini album by South Korean rock band F.T. Island. It was released in South Korea on November 18, 2013 by FNC Music and distributed by Mnet Media. It features the song “Madly,” a rock ballad. Members Choi Jong-hoon, Lee Jae-jin, and Lee Hong-gi each composed a song for the album. The record placed first on Hanteo's weekly album chart, as well as on Gaon Chart. Preorders of the album lead the HMV online chart in Japan.
Document 10: Prologue of F.T. Island: Soyogi: Prologue of F.T. Island: Soyogi is the first Japanese EP released by South Korean rock band F.T. Island on 7 June, 2008. Two of the songs, "Primadonna" and "F.T. Island" are Japanese-language versions of previously released Korean songs, while "Always Be Mine" is the English-language version of "First Kiss". Music videos were released to "Soyogi" and "Friendship". An extended version was later released as their first Japanese studio album, "Japan Special Album Vol. 1".
Document 11: Lee Seung-gi: Lee Seung-gi (Hangul: 이승기 ; Hanja: 李昇基 ; born January 13, 1987) is a South Korean singer, actor, host and entertainer. Known as the "Ballad Prince", Lee has had numerous hit songs such as "Because You're My Woman", "Will You Marry Me", and "Return". He has garnered further recognition as an actor with leading roles in popular dramas such as "Brilliant Legacy" (2009), "My Girlfriend Is a Nine-Tailed Fox" (2010), and "Gu Family Book" (2013). He was a member of the first season of weekend variety show "1 Night 2 Days" from November 2007 to February 2012, and the host of talk show "Strong Heart" from October 2009 to April 2012.
Document 12: Choi Jong-hoon: Choi Jong-hoon (Korean: 최종훈; hanja: 崔鐘訓) ] ; Japanese: チェ•ジョンフン; born March 7, 1990) is a South Korean guitarist, musician and actor. He is the leader of the South Korean rock band F.T. Island, where he serves as the lead guitarist, keyboardist, lyricist and composer.
Document 13: Five Treasure Box: Five Treasure Box is the fourth studio album by South Korean rock band F.T. Island. It was released in South Korea on September 10, 2012, under FNC Entertainment and distributed by Mnet Media. Being the band's first studio album in three years, the title of the album reflects the "treasure" of the songs on the album, where they contributed to seven of the ten tracks on the album by songwriting or composition. The album sold over 30,000 copies in its first week and debuted at number one on the weekly Gaon albums chart. The single "I Wish" has peaked at number eight on the weekly Gaon singles chart and earned F.T. Island one K-Chart win on Mnet's music television program "M! Countdown".
Document 14: Seungri: Lee Seung-hyun (Hangul: 이승현; born December 12, 1990), better known by his stage name Seungri (Hangul: 승리, "Victory") and V.I when performing in Japan, is a South Korean singer, songwriter, record producer, actor, and entrepreneur. In the mid-2000s, Seungri rose to prominence as one of three vocalists and youngest member of the South Korean boy band Big Bang under YG Entertainment, which eventually became one of the best-selling digital group of all-time in Asia and one of the best-selling boy bands in the world. With the release of the group's second studio album "Remember" (2008), in which the second single released, "Strong Baby", was performed solely by Seungri, he began to adopt a more mature image as an artist.
Document 15: Song Seung-hyun: Song Seung-hyun (Hangul: 송승현 ; Hanja: 宋承炫 ; Japanese:ソン•スンヒョン born 21 August 1992) is a South Korean musician and actor. He is a member of rock band F.T. Island, where he serves as the guitarist, vocalist, lyricist, and composer. He is the newest member after replacing Oh Won Bin. He is the second youngest member of the group after Choi Min-hwan.
ground_truth: Lee Hong-gi