Question: Love in the Moonlight starred what South Korean actor who is the leader and vocalist of the South Korean boy group B1A4 under WM Entertainment?

full_context: Document 1: Jung Yong-hwa: Jung Yong-hwa (; ] ; born June 22, 1989) is a South Korean musician, singer-songwriter, record producer and actor. He is the leader, lead vocalist and rhythm guitarist of the rock band CNBLUE. Jung made his television debut in "You're Beautiful" (2009), and has since starred in television dramas "Heartstrings" (2011), "Marry Him If You Dare" (2013) and "The Three Musketeers" (2014). In 2015, Jung made his solo debut with the album "One Fine Day".
Document 2: Jeong Jinwoon: Jeong Jin-woon (Hangul: 정진운), most often credited as Jinwoon, is a South Korean idol singer and actor. Debuted as a member of the group 2AM in July 2008. Began his acting career in 2012 in the KBS's series "Dream High 2", playing Jin Yoo-jin.
Document 3: Lee Jung-shin: Lee Jung-shin (이정신, born on September 15, 1991) is a South Korean musician, singer, rapper, and actor. He is the bassist of South Korean rock band CNBLUE, which debuted in January 2010 in South Korea.
Document 4: The Legend of the Blue Sea: The Legend of the Blue Sea () is a 2016-2017 South Korean television series starring Jun Ji-hyun and Lee Min-ho. Inspired by a classic Joseon legend from Korea's first collection of unofficial historical tales about a fisherman who captures and releases a mermaid, this drama tells the love story of a con-artist and a mermaid who travels across the ocean to find him. It aired on SBS every Wednesday and Thursday at 22:00 (KST) started from 16 November 2016 until 25 January 2017.
Document 5: Jang Jin-young (singer): Jang Jin-young (born July 1, 1983) is a South Korean singer and the former lead singer of the boy group Black Beat. He's currently more active as a vocal trainer for S.M. Entertainment's artists, particularly SHINee, EXO and Red Velvet.
Document 6: Park Jin-young (entertainer, born 1994): Park Jin-young (born September 22, 1994), referred to as Jinyoung (formerly as Jr.), is a South Korean singer, songwriter, actor, dancer, and choreographer. He is a member of the boy group Got7 and duo JJ Project. Park made his acting debut in the drama "Dream High 2" (2012) followed by supporting roles in "When a Man Falls in Love" (2013) and "Beloved Eun-dong" (2015). He made his film debut in the independent film "A Stray Goat" (2016).
Document 7: Love in the Moonlight: Love in the Moonlight () is a South Korean television series starring Park Bo-gum and Kim Yoo-jung with Jinyoung, Chae Soo-bin and Kwak Dong-yeon. It is a coming-of-age story and youth romance set during 19th-century Joseon Dynasty based on the novel "" which was first serialized on Naver in 2013 and consequently published as a five-part series of books in 2015. It aired every Monday and Tuesday from August 22, 2016 until October 18, 2016 on KBS2 at 22:00 (KST) for 18 episodes.
Document 8: Park Jin-young: Park Jin-young (born December 13, 1971), better known by his stage name J. Y. Park or JYP, is a South Korean singer-songwriter, record producer, reality television judge and record executive. Beginning as a singer, he then went behind the scenes as a record producer and eventually a record executive. He is the principal founder and chief executive officer of his own entertainment company JYP Entertainment.
Document 9: Jung Jin-young (singer): Jung Jin-young (Hangul: 정진영 ; born November 18, 1991), professionally known as Jinyoung, is a South Korean singer, songwriter, record producer, and actor. He is the leader and vocalist of the South Korean boy group B1A4 under WM Entertainment, and has also gained recognition with the television series "Love in the Moonlight" (2016).
Document 10: Guardian: The Lonely and Great God: Guardian: The Lonely and Great God (), known internationally as simply Goblin, is a South Korean television series starring Gong Yoo, Kim Go-eun, Lee Dong-wook, Yoo In-na, and Yook Sung-jae. It aired on cable network tvN every Friday and Saturday at 20:00 starting December 2, 2016 until January 21, 2017.
Document 11: Reply 1988: Reply 1988 () is a South Korean television series starring Lee Hye-ri, Park Bo-gum, Go Kyung-pyo, Ryu Jun-yeol and Lee Dong-hwi. Set in the year 1988, it revolves around five friends and their families living in the same neighborhood of Ssangmun-dong, Dobong District, Northern Seoul. It aired every Friday and Saturday from November 6, 2015, to January 16, 2016, on tvN at 7:50 (KST) for 20 episodes.
Document 12: 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 13: Scholar Who Walks the Night: Scholar Who Walks the Night () is a 2015 South Korean television series based on the manhwa of the same name written by Jo Joo-hee and illustrated by Han Seung-hee. Starring Lee Joon-gi, Shim Chang-min, Lee Soo-hyuk, Lee Yu-bi and Kim So-eun, it aired on MBC from July 8 to September 10, 2015 on Wednesdays and Thursdays at 21:55 for 20 episodes.
Document 14: Love, Lies (2016 film): Love, Lies () is 2016 South Korean period drama film directed by Park Heung-sik, reuniting "The Beauty Inside" co-stars Han Hyo-joo, Chun Woo-hee and Yoo Yeon-seok. The story takes place in 1943, during the Imperial Japanese occupation of Korea. In the film, best friends Jung So-yul (Han Hyo-joo) and Seo Yeon-hee (Chun Woo-hee) are two of the last remaining "gisaeng". Although they enjoy pop music, they are committed to singing "jeongga", or classical Korean songs. So-yul's life falls apart when her lover, pop music producer Kim Yoon-woo (Yoo Yeon-seok), falls in love with Yeon-hee and helps her debut as a pop singer. The story follows So-yul's downward spiral as she is consumed by uncontrollable jealousy.
Document 15: Moon Embracing the Sun: Moon Embracing the Sun (, also known as The Moon That Embraces the Sun or The Sun and the Moon) is a 2012 South Korean television drama series, starring Kim Soo-hyun, Han Ga-in, Jung Il-woo and Kim Min-seo. It aired on MBC from January 4 to March 15, 2012, on Wednesdays and Thursdays at 21:55 for 20 episodes.
ground_truth: Jung Jin-young