Question:  Jung Yong-hwa and Chrissie Hynde are both musicians in what musical genre?

full_context: Document 1: Martin Chambers: Martin Dale Chambers (born 4 September 1951 in Hereford) is an English musician, who is best known as a founding member and drummer of the rock band the Pretenders. In addition to playing the drums with the group, Chambers sings backing vocals (lead vocals on the song "Fast or Slow (The Law's the Law)", the B-side of the singles "2000 Miles" and "Show Me", which he also wrote) and plays percussion. He was part of the original band line-up which also included Chrissie Hynde (vocals/guitar), James Honeyman-Scott (guitar/vocals/keyboards) and Pete Farndon (bass guitar/vocals). Hynde and Chambers are the only two surviving original members, and he has served two separate tenures with the group.
Document 2: Packed!: Packed! is the fifth album by rock group The Pretenders, released in 1990. For this album, the only real member of the group is Chrissie Hynde; no other person is pictured anywhere within the album package, and a rotating cast of session musicians (rather than a set band) is used to back Hynde throughout, essentially making this a de facto solo album by Hynde, only using the Pretenders name to satisfy contractual obligations. However, drummer Blair Cunningham plays on all tracks, though he is not credited as part of the band.
Document 3: Chrissie Hynde: Christine Ellen "Chrissie" Hynde (born September 7, 1951) is an American musician who is best known as a founding member of the rock band The Pretenders.
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: The Pretenders: The Pretenders are an English-American rock band formed in Hereford, England, in March 1978. The original band consisted of initiator and main songwriter Chrissie Hynde (lead vocals, rhythm guitar), James Honeyman-Scott (lead guitar, backing vocals, keyboards), Pete Farndon (bass guitar, backing vocals), and Martin Chambers (drums, backing vocals, percussion). Following the drug-related deaths of Honeyman-Scott and Farndon, the band has experienced numerous subsequent personnel changes, with Hynde as the only consistent member, and Chambers returning after an absence of several years.
Document 6: 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 7: Mileage (song): "Mileage" (마일리지 ; "Mailliji " ) is a song by South Korean musicians Jung Yong-hwa of CNBLUE and Yang Dong-geun (YDG). Released on January 9, 2015, it serves as the pre-release single of the former's debut solo studio album "One Fine Day" (2015). While filming for the television series "The Three Musketeers" (2014), Jung was inspired by YDG's affection towards him family on set to compose the song. Upon release of Jung's album, the two performed "Mileage" on music programs and talk shows. The song debuted and peaked at number 57 on South Korea's national Gaon Digital Chart, selling over 78,000 digital downloads since its release.
Document 8: Chrissy Amphlett: Christine Joy "Chrissy" Amphlett ( ; 25 October 1959 – 21 April 2013) was an Australian singer, songwriter and actress who was the frontwoman of the Australian rock band Divinyls.
Document 9: Kristin Hersh: Kristin Hersh (born August 7, 1966) is an American singer, songwriter and author, known for her solo work and with her rock bands Throwing Muses and 50FootWave. She has released ten solo albums. Her guitar work and composition style ranges from jaggedly dissonant to traditional folk. Hersh's lyrics have a stream-of-consciousness style, reflecting her personal experiences.
Document 10: Lee Jong-hyun: Lee Jong-hyun (Hangul: 이종현; ] ; born on May 15, 1990) is a South Korean musician, singer-songwriter and actor. He is the lead guitarist and vocalist of South Korean rock band CNBLUE.
Document 11: 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 12: Christina Billotte: Christina Billotte (born May 4, 1969) is an American singer, songwriter, and guitarist. She is known for her involvement in the punk music scene in Washington DC, as a performer and organizer. She is included in Venus Zine's list "The Greatest Female Guitarists of All Time".
Document 13: You, My Star: "You, My Star" (별, 그대 ; "Byeol, Geudae " ) is a song by South Korean musician Jung Yong-hwa of CNBLUE. Written in dedication to his fans, the song was released in December 23, 2013, under FNC Entertainment. Two days prior, Jung performed the song on the year-end music program "SBS Gayo Daejeon". "You, My Star" debuted and peaked at number 22 no South Korea's national Gaon Digital Chart; all proceeds went to the label's charity Love FNC.
Document 14: 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 15: Reckless: My Life as a Pretender: Reckless: My Life as a Pretender is a memoir by the American musician Chrissie Hynde, a member of rock band The Pretenders. The book was published on September 8, 2015 by Doubleday, New York and London. In it, Hynde documents her childhood and youth in the Midwest, the founding of The Pretenders, life on the road and interactions with other musicians.
ground_truth: rock