Photo: Cloudy Dayz · CC BY 4.0 · credits
Timeline
1990s
2010s
· Debut release
Debut release: Y.BIRD From Jellyfish With LYn X LEO
First documented Single in the MusicBrainz discography.
source: musicbrainz
Biography
Biography
Jung Taek-woon (Korean: 정택운; born on November 10, 1990), known professionally as Leo (Korean: 레오), is a South Korean singer, songwriter and musical theatre actor, formerly signed under Jellyfish Entertainment. Leo debuted as a member of the South Korean boy group VIXX in May 2012, and began his acting career in 2014 in the musical Full House as Lee Young-jae. In 2015 he began his songwriting career, and with VIXX member Ravi formed the group's first official sub-unit VIXX LR.
Early life
Born in Gwangju, he moved to Yangjae-dong, Seoul, South Korea when he was 49 days old, his family consists of himself, his parents and three older sisters. Leo studied music composition at Baekseok University and was a member of the National Youth Soccer Players from 2004 to 2007. Growing up, Leo was actively involved in swimming, boxing, taekwondo (blue belt), and soccer. While recovering from an injury, he developed an interest in becoming a singer after listening to Wheesung's "Walking in the Sky".
2012–2014: Career beginnings
Leo was one of ten trainees who were contestants in Mnet's survival reality show MyDOL. Leo was one of the six contestants who were chosen to be a part of the final line-up of the new boy group VIXX. The group debuted with "Super Hero" on May 24, 2012 on M! Countdown. During MyDOL, Leo was featured in Brian Joo's "Let This Die" and Seo In-guk's "Shake It Up" music videos. After his debut with VIXX, Leo appeared in episode 4 of SBS' television drama The Heirs alongside his group members.
As an avid sports fan, Leo has appeared in several athletic variety shows with other idols such as Dream Team and Idol Athletics Championship.
In 2014, Leo had a cameo role in SBS' television drama Glorious Day alongside Hyuk and was cast in the musical Full House in the lead role of Lee Young-jae from April to June at the Hongik Daehakro Art Center, Grand Theater in Seoul. Later that year, Leo also participated in the Y.Bird from Jellyfish Island project created by Jellyfish Entertainment CEO Hwang Se-jun by collaborating with Lyn on her self-composed single "Blossom Tears" (Korean: 꽃잎놀이); their single Y.BIRD from Jellyfish with LYn X Leo was the fourth in the series. In the haunting music video, he played a psychopath who killed the women he loved so that he could keep them.
2015–2016: Composing, VIXX LR and musical
In 2015, Leo composed the song "On a Cold Night" (Korean: 차가운 밤에) for VIXX's fifth single album Boys' Record. Originally written as a duet between him and Ken, a studio version was released with the rest of the members performing for that album.
On August 7, 2015, Jellyfish Entertainment released a video trailer on VIXX's official website after a mysterious countdown with a silhouette of VIXX's last special album Boys' Record. As time went by, members of VIXX disappeared until finally only Leo and Ravi were left behind, which caused fans to speculate that it meant another comeback for all six members. A video trailer of VIXX LR was then revealed.
VIXX LR was confirmed by Jellyfish Entertainment to be VIXX's first official sub-unit composed of rapper Ravi and vocalist Leo. Their debut EP, Beautiful Liar, was released on August 17, 2015. On the same day VIXX LR held their first showcase for Beautiful Liar at Yes24 Muv Hall in Seoul′s Mapo-gu.
In 2016 Leo was cast in the musical Mata Hari in the lead role of Armand from March 25 to June 12 at the Blue Square in Seoul. It was confirmed that he would be shedding his stage name and using his birth name Jung Taek Woon for the role instead, unlike his previous musical role in Full House where he was credited as Leo.
On September 20, 2016, Leo collaborated with actress and DJ Park So-hyun to celebrate SBS Power FM’s 20th Anniversary and released the song "That's All" (Korean: 그뿐야) as part of SBS Power FM's 20th Anniversary song project.
Leo was cast in the musical Monte Cristo in the supporting role of Albert from November 19, 2016, to February 12, 2017, at the Chungmu Arts Center Grand Theater.
2017–present: Solo debut
On October 16, 2017, it was announced that Leo had been cast in the musical The Last Kiss as Crown Prince Rudolf.
On July 21, 2018, it was announced that Leo will be releasing his first solo EP titled Canvas
CANVASSpotifyYouTube Music (search)Tracklist · 7 tracks1Touch & Sketch3:172Cover Girl3:013Free Tempo3:164Give me something3:335나는 요즘4:186Gesture3:347꿈4:25 on July 31, 2018.
From August 31 to September 2, Leo had his first ever solo concert "LEO 1st SOLO CONCERT [CANVAS]" which was held at Blue Square Eye Market Hall
On May 14, 2019, Leo announced about his "2nd Solo Concert [MUSE]" which was in June 2019. Leo's second EP Muse was released on June 17.
On August 3, 2022, Leo released a teaser video of Coming Soon through his official YouTube and SNS channels.
On March 3, 2024, Jellyfish Entertainment announced that Leo and fellow VIXX member Ken were leaving the agency, but intended to continue their activities with VIXX.
Personal life
Leo enlisted for his mandatory military service on December 2, 2019, serving as a public service worker due to severe panic disorder and depression. He was discharged on September 9, 2021.
Songwriting credits
All song credits are adapted from the Korea Music Copyright Association's database unless stated otherwise.
Notes
Discography & profile
Normalised profile
Percentiles are computed over every artist in the database, so a tier-3 artist can still sit in the 95th percentile on a single axis.
| Metric | Value | Percentile |
|---|---|---|
| Wikipedia language versions | 16 | 74.5th |
| Spotify monthly listeners | — | no data |
| Release groups in DB | 14 | 84.5th |
| Studio albums | 0 | 0th |
| Awards recorded | 0 | 0th |
| Timeline events | 2 | 62.1th |
| Recording span (years) | 10 | 26.4th |
| Genres | 2 | 74th |
Percentiles are computed at render time; missing values mean the artist has no data on that axis.
Discography (14 release groups)
Single · 10
| Cover | Year | Title | Notes | First release |
|---|---|---|---|---|
| 2014 | Y.BIRD From Jellyfish With LYn X LEOSearch SpotifySearch YouTube MusicTracklist · 2 tracks · 7:161Blossom Tears3:38 2Blossom Tears (Inst.)3:38 | 5 August 2014 | ||
| 2016 | Just ThatSearch SpotifySearch YouTube MusicTracklist · 1 track · 3:431Just That3:43 | 20 September 2016 | ||
| 2018 | You Are There, But Not ThereSearch SpotifySearch YouTube MusicTracklist · 1 track · 4:081있는데 없는 너4:08 | 2 October 2018 | ||
| 2019 | Musical ELISABETH 2018Search SpotifySearch YouTube MusicTracklist · 2 tracks · 8:031Ich Gehör Nur Mir4:02 2Der letzte Tanz4:01 | 21 February 2019 | ||
| 2019 | the flowerSearch SpotifySearch YouTube MusicTracklist · 1 track · 5:431the flower5:43 | 5 June 2019 | ||
| 2019 | All of meSearch SpotifySearch YouTube MusicTracklist · 1 track · 4:001All of me4:00 | 10 November 2019 | ||
| 2019 | December, The Night of DreamsSearch SpotifySearch YouTube MusicTracklist · 1 track · 3:181December, The Night of Dreams3:18 | 1 December 2019 | ||
| 2020 | ThursdaySearch SpotifySearch YouTube MusicTracklist · 1 track · 3:081Thursday3:08 | 27 November 2020 | ||
| 2021 | I'm Still HereSearch SpotifySearch YouTube MusicTracklist · 1 track1I'm Still Here | 2 November 2021 | ||
| 2022 | HAPPY ENDING ROMANCE (Original Television Soundtrack, Pt. 1)Search SpotifySearch YouTube MusicTracklist · 2 tracks · 7:121I Still3:36 2I Still (Instrumental)3:36 | Soundtrack | 25 November 2022 |
EP · 4
| Cover | Year | Title | Notes | First release |
|---|---|---|---|---|
| 2018 | CANVASSearch SpotifySearch YouTube MusicTracklist · 7 tracks · 25:241Touch & Sketch3:17 2Cover Girl3:01 3Free Tempo3:16 4Give me something3:33 5나는 요즘4:18 6Gesture3:34 7꿈4:25 | 31 July 2018 | ||
| 2019 | MUSESearch SpotifySearch YouTube MusicTracklist · 6 tracks1로맨티시즘 (Romanticism) 2다가오는 것들 3향수병 4타이트해 5MUSE 6the flower | 17 June 2019 | ||
| 2022 | Piano man Op. 9Search SpotifySearch YouTube MusicTracklist · 5 tracks · 16:351Beautiful Love3:12 2Losing Game3:30 3So easy3:20 4Chilling2:58 5Blue Rain3:35 | 23 August 2022 | ||
| 2024 | GREGSearch SpotifySearch YouTube MusicTracklist · 5 tracks · 10:161Today Is the Day1:34 2Mozart1:54 3Coffee Bean1:14 4Stars1:34 5Nostop4:00 | 4 October 2024 |
Stats & PK
Percentile within all 23,672 published artists.Put Leo head-to-head →
| Metric | Value | Percentile |
|---|---|---|
| Wikipedia language versions | 16 | 74.5th |
| Spotify monthly listeners | — | no data |
| Release groups in DB | 14 | 84.5th |
| Studio albums | 0 | 0th |
| Awards recorded | 0 | 0th |
| Timeline events | 2 | 62.1th |
| Recording span (years) | 10 | 26.4th |
| Genres | 2 | 74th |
Awards & honours
Line-up
| Name | From | To | Role |
|---|---|---|---|
| VIXX(band) | 24 May 2012 | present | original |
| VIXX LR(band) | 7 August 2015 | 11 April 2023 | original |
Where this record comes from
portrait—Wikimedia Commons · CC BY 4.0 · retrieved 11 October 2026
https://commons.wikimedia.org/wiki/File:Leo_Jung_at_a_fanmeeting_at_Inkigayo_in_June_2013_01.JPGaliases/urls—musicbrainz · CC0 · retrieved 10 October 2026
https://musicbrainz.org/artist/d4a10775-aaf8-4d0d-89ea-ddb593150af7discography—musicbrainz · CC0 · retrieved 10 October 2026
https://musicbrainz.org/artist/d4a10775-aaf8-4d0d-89ea-ddb593150af7core—wikidata · CC0 · retrieved 10 October 2026
https://www.wikidata.org/wiki/Q18550576genre—wikidata · CC0 · retrieved 11 October 2026
https://www.wikidata.org/wiki/Q18550576seed-list—wikipedia · CC BY-SA 4.0 · retrieved 10 October 2026
https://en.wikipedia.org/wiki/Leo_%28singer%29biography—wikipedia-en · CC BY-SA 4.0 · retrieved 10 October 2026
https://en.wikipedia.org/wiki/Leo_%28singer%29
Why this artist is in the database
- List of K-pop artists
Tier rule: curated genre/region list
Image: Cloudy Dayz · CC BY 4.0 · Wikimedia Commons
Wikidata: Q18550576 · MusicBrainz: d4a10775-aaf8-4d0d-89ea-ddb593150af7
Similar artists
Browse every Tier 3 artist →Ranked from this record's own data: shared genre tags (rarer tags weigh more), era, home country and comparable fame. Every card lists the signals that placed it — no editorial picks.

Dawon
South Korea · Person
sentimental ballad
1 shared genre tag · debut 2016, 2 years apart · from South Korea
15 wikis

Jeong Eun-ji
South Korea · Person
sentimental ballad
1 shared genre tag · debut 2012, 2 years apart · from South Korea
29 wikis

Byun Baek-hyun
South Korea · Person
sentimental ballad
1 shared genre tag · debut 2015, 1 year apart · from South Korea
45 wikis

K.Will
South Korea · Person
sentimental ballad
1 shared genre tag · debut 2007 · from South Korea
19 wikis

Kim Jeong-hoon
South Korea · Person
sentimental ballad
1 shared genre tag · from South Korea
13 wikis
Eru
United States · Person
sentimental ballad
1 shared genre tag
6 wikis

Im Chang-jung
South Korea · Person
sentimental ballad
1 shared genre tag · from South Korea
11 wikis

Yoon Jong-shin
South Korea · Person
sentimental ballad
1 shared genre tag · from South Korea
10 wikis