Question: What is the new name of South Korean singer-songwriter Jung Joon-young's new rock band, previously known as JJY Band?

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: 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 3: Yook Sung-jae: Yook Sung-jae (; born (1995--) 2, 1995 ) is a South Korean singer, actor and host. He is a member of the boy group BtoB and its sub-group, BtoB Blue. Aside from his group's activities, Yook is known for acting in television dramas, "" (2015), "" (2015) and "" (2016).
Document 4: Teenager (Jung Joon Young album): TEENAGER is the second EP by South Korean rock singer, Jung Joon-young, released by CJ E&M on June 26, 2014, as the follow-up to his 1st mini album, which was released in October, 2013.
Document 5: Jung Joon-young discography: Jung Joon-young (born February 21, 1989) is a South Korean singer-songwriter, radio DJ, host, actor, and television personality. He first gained recognition in Mnet's reality television talent show, "Superstar K4" (2012), where he finished third place. In 2013, he became the youngest member of KBS's variety show "2 Days & 1 Night" Season 3. Since 2015, Jung is the lead vocalist of a rock band, JJY Band, which changed their name to Drug Restaurant since May 20, 2016.
Document 6: Jung Joon-young: Jung Joon-young (born February 21, 1989) is a South Korean singer-songwriter, radio DJ, host, actor, and television personality. He first gained recognition in Mnet's reality television talent show, "Superstar K4" (2012), where he finished third place. In 2013, he became the youngest member of KBS's variety show "2 Days & 1 Night" Season 3. He hosted his own radio program titled MBC FM's "Jung Joon-young's Simsimtapa" (2014) and made his big screen debut in "Love Forecast" (2015). Since 2015, Jung is the lead vocalist of rock band Drug Restaurant, previously known as JJY Band, releasing their first album "Escape to Hangover" in May 2015
Document 7: BTS (band): BTS, also known as Bangtan Boys or Beyond The Scene, is a seven-member South Korean boy band formed by Big Hit Entertainment. They debuted on June 12, 2013 with the song "No More Dream" from their first album "2 Cool 4 Skool", for which they won several New Artist of the Year awards, including at the 2013 Melon Music Awards and Golden Disc Awards and the 2014 Seoul Music Awards. The band continued to rise to widespread prominence with their subsequent albums "Dark & Wild" (2014), "The Most Beautiful Moment in Life, Part 2" (2015) and "" (2016), with the latter two entering the Billboard 200. "The Most Beautiful Moment in Life: Young Forever" went on to win the Album of the Year award at the 2016 Melon Music Awards.
Document 8: Highlight (band): Highlight (Korean: 하이라이트 ) is a South Korean boy band formerly known as Beast (Korean: 비스트). The band consists of five members: Yoon Doo-joon, Yong Jun-hyung, Yang Yo-seob, Lee Gi-kwang, and Son Dong-woon. Original member Jang Hyun-seung officially left the group in April 2016. Later that year, the five remaining members moved labels from Cube Entertainment to Around Us Entertainment and subsequently changed their name to Highlight in 2017.
Document 9: Jung Joon Young 1st mini album: Jung Joon Young 1st mini album is the debut EP by South Korean rock singer, Jung Joon-young, released by CJ E&M on October 10, 2013. It consists of six songs containing a pre-released track "병이에요 (Spotless Mind)", the title track, "이별 10분 전 (The Sense of an Ending)", and two songs that he participated in writing and composing: "아는 번호 (Missed Call)" and "Take off Mask" and other two songs "정말? (Really?)", and "Be Stupid".
Document 10: Kang Seung-yoon: Kang Seung-yoon (born (1994--) 21, 1994 ), known as Seungyoon, is a South Korean singer-songwriter, record producer, actor, and leader of boy group Winner. In 2010, he participated in the reality television singing contest "Superstar K2" and finished in fourth place. In January 2011, he became a trainee under YG Entertainment and went on to debut as a solo artist in July 2013 and as the leader of Winner in October 2013.
Document 11: Drug Restaurant: Drug Restaurant (Hangul: 드럭 레스토랑), formerly known as the Jung Joon Young Band (JJY Band) (Hangul: 정준영밴드), is a Korean rock band, formed in Seoul, South Korea in 2014. The band consists of vocalist and guitarist Jung Joon-young, bassist Jung Seok-won, guitarist Jo Dae-min (Dammit), and drummer Lee Hyun-gyu (Drok. Q). The band was formed by Jung, a year after he debuted as solo singer in 2013. The band released their debut album, "Escape to Hangover", on May 27, 2015. JJY Band changed their name to Drug Restaurant on May 20, 2016, because they wanted to go with a name that focuses on the band as a whole rather than centering it around the frontman vocalist.
Document 12: Day6: Day6 (, stylized as DAY6) is a South Korean rock band formed by JYP Entertainment. The band's current line-up consists of five members: Jae, Sungjin, Young K, Wonpil, and Dowoon. The band debuted with the release of their first EP, "The Day" on September 7, 2015.
Document 13: 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 14: G-Dragon: Kwon Ji-yong (; born August 18, 1988), better known by his stage name G-Dragon, is a South Korean rapper, singer-songwriter, record producer, and fashion icon. After six years as a trainee under the record label YG Entertainment, G-Dragon rose to fame in the mid-2000s as one of two rappers in the South Korean hip hop boy band Big Bang. Despite initial lukewarm receptions, the group became one of the best-selling digital groups of all-time in Asia and one of the best-selling boy bands in the world.
Document 15: D.Holic: D.Holic (Hangul: 디홀릭) was a South Korean girl group formed by Star Road Entertainment (formerly H.Mate Entertainment) in 2014 with five members. Nine left the group in August 2015, due to personal reasons, and was replaced by new member, Hwajung. In July 2016, it was revealed through teasers that Danbee and Duri had decided to leave the group, new member, EJ, was added to the line-up. In February 2017, it was confirmed through a performance that members Hami and Hwajung had departed from the group. They were temporary replaced with new members, Nayoung and Youjin, although they never officially made their debut. In July 2017, EJ announced that she would be leaving the group to pursue a modelling career. The group informally disbanded after the departure of all but one member, with the aim of re-debuting the remaining member, Rena, into a new girl group within a year. The group has released one mini-album: "Chewy" (2015) and three single albums: "D.Holic Dark With Dignity" (2014), "Murphy & Sally" (2015), and "Color Me Rad" (2016).
ground_truth: Drug Restaurant