Question: What occupation do Fran Healy and Jung Yong-hwa have in common?

Context articles: Volume 1 (BNQT album)
List of songs recorded by CNBLUE
Wreckorder
BNQT
Fran Healy (musician)
Where You Stand (song)
Mileage (song)
The Beautiful Occupation
Jung Yong-hwa
Travis discography

Volume 1 is the debut studio album by indie super-group BNQT, lead by Eric Pulido (Midlake) with Ben Bridwell (Band of Horses), Alex Kapranos (Franz Ferdinand), Fran Healy (Travis) and Jason Lytle (Grandaddy), backed by the other members of Midlake.
 Each member wrote and sang on two tracks each.
 It was released on 28 April 2017.
CNBLUE is a South Korean pop-rock idol band.
 The quartet made its debut in Japan under AI Entertainment in 2009, where it released its first two independent mini-albums "Now or Never" and "Voice".
 Written entirely in English, the former contained two songs by frontman Jung Yong-hwa ("Just Please" and "Love Revolution"), while the latter contained one ("Y, Why...").
 The band proceeded to debut in its home country under FNC Entertainment with the mini-album "Bluetory" (2010), in which Jung contributed to the Korean lyrics of two tracks alongside the record label's CEO Han Seong-ho: "Love Revolution" and "Y, Why...".
 With CNBLUE's followup "Bluelove", in addition to the songs penned solely by Jung ("Tattoo" and "Love Light"), drummer Kang Min-hyuk co-wrote "Sweet Holiday" with Han.
Wreckorder is the debut solo album from Travis frontman, Fran Healy.
 The album was released on 4 October 2010, on Healy's private label, WreckordLabel.
 The album was recorded in late 2009 in Berlin and New York City, before being completed in Vermont in early 2010.
 It was produced by Emery Dobyns, with contributions from Paul McCartney, Neko Case and Noah and the Whale's Tom Hobden.
 The album is available in standard and deluxe editions, and debuted at number 76 on the UK Albums Chart.
BNQT (pronounced banquet ( ) is an indie super-group featuring Fran Healy (Travis), Alex Kapranos (Franz Ferdinand), Eric Pulido (Midlake), Ben Bridwell (Band of Horses) and Jason Lytle (Grandaddy), backed by other members of Midlake; Jesse Chandler, Joey McClellan and McKenzie Smith.
Francis "Fran" Healy (born 23 July 1973) is a Scottish musician.
 He is the lead singer and main songwriter of the band Travis, having written nearly all of the songs on their first six studio albums, with the 8th being more of a co-written work.
 He is based in Berlin.
 Healy released his debut solo album titled "Wreckorder" in October 2010, which featured Paul McCartney on bass.
"Where You Stand" is a song by alternative rock band Travis, written by Dougie Payne, Holly Partridge and Fran Healy.
 It was released on 30 April 2013 as the lead single from the band's seventh studio album, "Where You Stand".
"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.
"The Beautiful Occupation" is the second single from Scottish indie rock band Travis' fourth studio album, "12 Memories".
 The single peaked at #48 on the UK Singles Chart, becoming their worst performing single to date.
 The song was written by frontman Fran Healy and is a reflection of the anti-war sentiments of the War on Iraq, also carrying serious criticism to the invasion itself.
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".
Travis is an alternative rock band from Glasgow, Scotland, comprising Fran Healy (lead vocals, guitar, piano, banjo), Dougie Payne (bass guitar, backing vocals), Andy Dunlop (lead guitar, banjo, keyboards, backing vocals) and Neil Primrose (drums, percussion).
 Travis have twice been awarded British album of the year at the annual BRIT Awards, and are often credited with having paved the way for bands such as Coldplay, Keane and Snow Patrol.
 They have released eight studio albums, beginning with their debut, "Good Feeling", in 1997.
 Their latest album, "Everything at Once", was released in April 2016.