Question: Did Lee Hong-gi and Jung Yong-hwa released their first solo albums in the same year?

Context articles: Do Disturb
Ikemen desu ne
Mileage (song)
One Fine Day (Jung Yong-hwa album)
For First Time Lovers
List of songs recorded by CNBLUE
You're Beautiful (TV series)
Jung Yong-hwa
Lee Hong-gi
2gether (CNBLUE album)

Do Disturb is the first mini-album by South Korean musician and CNBLUE member Jung Yong-hwa.
 It was released in July 19, 2017, under FNC Entertainment.
 Its titled was inspired by a "do not disturb" door hanger.
 Consisting of dance music tracks and balladry, the record sees a sonic shift from Jung's previous music with his band and as a solo artist.
Ikemen desu ne (美男ですね ) ("You're Handsome") is a 2011 Japanese television series.
 It is the Japanese remake of the Korean musical romantic comedy television drama "You're Beautiful".
 The original Korean version aired in 2009 and starred Park Shin-hye, Jang Keun-suk, Jung Yong-hwa and Lee Hong-gi.
 The story revolved around a fictional musician band named A*N.JELL.
 Park Shin Hye played a junior nun who has to pose as her twin brother and take his place in the group, leading to a complicated relationship between the band members.
"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.
One Fine Day (어느 멋진 날 ; Eoneu Meotjin Nal) is the debut solo studio album by South Korean vocalist and CNBLUE member Jung Yong-hwa.
 It was released on January 20, 2015, under FNC Entertainment and distributed by CJ E&M.
 As CNBLUE's promotions for their mini-album "Can't Stop" (2014) came to a close, the label announced plans for Jung to release a solo album within the year.
 Since the album's inception, he sought to distance himself from the band's sound and include various musical styles on the record.
 Ultimately, he conceived a collaborative album with an array of musicians.
"For First Time Lovers" (Hangul: 처음 사랑하는 연인들을 위해, subtitled Banmal Song [반말송]) is Jung Yong-hwa's first solo digital single which was released on January 14, 2011.
 The song was featured on the second season of "We Got Married", where Yonghwa was in the show he wrote the song for.
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.
You're Beautiful () is a 2009 South Korean television series, starring Park Shin-hye, Jang Keun-suk, Jung Yong-hwa of CN Blue and Lee Hong-gi of F.T. Island.
 The series follows fictional musician band, A.N.JELL and how the relationship between its members changes when a girl posing as her twin brother joins the band.
 It aired on SBS from October 7 to November 26, 2009 on Wednesdays and Thursdays at 21:55 for 16 episodes.
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".
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.
2gether is the second studio album by South Korean pop rock idol band CNBLUE.
 It was released on September 14, 2015, under FNC Entertainment.
 After ending domestic promotions for "Can't Stop" (2014), the band concentrated on individual activities; most notably, frontman Jung Yong-hwa released his debut solo album "One Fine Day" (2015) in January.
 The remaining band members sought out opportunities in television, particularly in acting, variety show appearances, and MCing.
 In August 2015, it was announced that CNBLUE would release its second studio album after an absence lasting one year and seven months.
 With "2gether", the band decided to change the direction of its music; it stripped itself of the acoustic tracks it was known for and explored electronic dance music in order to create a particular color and form a distinctive sound.