Jang Hyun-seung (Hangul장현승; born September 3, 1989)[3] most often credited as Hyunseung, is a South Korean singer. He is best known as a former member of the boy group Beast, under the label Cube Entertainment. With Beast, he has released singles and albums in both Korean and Japanese. Beast won the Artist of the Year (Daesang) award at the Melon Music Awards in 2011.

Hyunseung is also one half of the duo Trouble Maker with Cube label mate, Hyuna. In December 2011, the duo released their debut extended play with the lead single, "Trouble Maker."[4]

Family and personal life

Hyunseung was raised in Seoul, South Korea. He has a younger sister named Jang Geu-rim.[5] His father died in the early morning of September 20, 2012 from a sudden heart attack.[6][7]

Hyunseung currently attends Dongshin University under a full scholarship, along with four other members of Beast. He is majoring in Applied Music.[8][9]



In 2004, at the age of 15, Hyunseung took part in auditions for YG Entertainment. He was eliminated in the second round, but went to see CEO Yang Hyun-suk afterwards out of frustration at being eliminated and was accepted as a trainee.[10]

For a year and four months, Hyunseung was a trainee for the boy group Big Bang. During this time, he used the stage name "So-1," a homonym for the Korean word for wish. He first gained media attention when he appeared in the group's pre-debut "Big Bang Documentary," along with members G-Dragon, T.O.P, Taeyang, Daesung and Seungri. He appeared in 10 out of 11 episodes, but was cut from the group in a final elimination round with Seungri. Yang Hyun-suk felt that Hyunseung's expressiveness and stage presence were underdeveloped at the time. Fellow Beast member, Yoon Doo-joon decided to become a singer after watching the Big Bang documentary featuring Hyunseung.[11] Hyunseung refers to his experiences at YG as important to his development as an artist.[10]

Hyunseung later met future fellow band member Yang Yo-seob while they were working as dancers for a show performance team. Yoseob convinced Hyunseung to join Cube Entertainment, leading to him debuting with Beast.[10]


The group has released 3 Korean albums, 9 Korean extended plays and various singles. In December 2010, Hyunseung teamed up with fellow member Lee Gi-kwang in a sub-unit to write and compose an R&B track as part of the group's digital album, My Story.

Solo activities

On May 7, 2015, Hyunseung released his solo debut extended play, My.[12] Other than BEAST's tracks, Hyunseung's album had more influences on hip-hop culture and pop culture in his preference, such as title track "Ma First" featuring Giriboy and "Break Up With Him" featuring Dok2.

Trouble Maker

In December 2011, Hyunseung formed a unit with label mate 4Minute's Hyuna called Trouble Maker. Trouble Maker debuted with their self-named lead single and extended play, Trouble Maker.[13] On October 28, 2013, the group released their second extended play, Chemistry.

Musical career

Hyunseung made his acting debut in the musical Mozart!. He performed as the main character from late July 2012 to early August 2012 at the Sejong Center.[14]

In April 2014, Hyunseung was cast in the musical Bonnie & Clyde. He performed as the lead character, Clyde, from April 15 to June 29, 2014 at the BBC Art Center along with other artists, including SHINee‘s Key, ZE:A‘s Park Hyung Sik, Kahi, and Oh So Yeon.[15]

In April 2016, Hyunseung was nominated and won "Best Male Artist (South Korea)" at the 4th Annual V-Chart Music Awards in China.[17]

Departure from BEAST

On April 19, 2016, Cube Entertainment announced he officially left Beast to continue as a soloist.[18][20]

On July 29, 2016, Cube Entertainment announced that Hyunseung will be joining dance competition program Hit The Stage, making it his first broadcast since leaving BEAST. [21]

On December 13, 2016, it was confirmed that Hyunseung had renewed his exclusive contract with Cube Entertainment.[22]


Extended plays

TitleAlbum detailsPeak chart positionsSales
"—" denotes releases that did not chart or were not released in that region.


TitleYearPeak positionsSalesAlbum
"Ma First" (featuring Giriboy)201528MY
"Break up With Him" (featuring Tokki)70

Other charted songs

TitleYearPeak positionsSalesAlbum
"Dirty Jokes"2015100MY
"I Said I Love You"

Features & OST

201105.09“Loving U”Yoon Doojoon, Jang Hyunseung, Yang YoseobAll My Love OST
201207.03“나는 나는 음악” (“I Am, I’m Music”)Jang Hyunseung for Mozart! Musical-
201301.03“일년전에” (“One Year Ago”)Jang Hyun-seung, Jung Eun-ji, and Kim Nam-joo‘A CUBE’ FOR SEASON #WHITE


2006Big Bang DocumentaryMTV
2009MTV B2STSBS MTVReality TV Program with Beast
2010MTV Beast Almighty
Idol MaidMBC
SHIN PD Variety ShowSBSGuest with Beast
2011Exciting Cube TVMnet Japan
2012Win Win (승승장구)KBSGuest with Beast, Ep. 103
Hello CounsellorTV Show (KBS)Guest with Beast, Ep. 88
Weekly IdolMBCEp. 58-59 with Beast
2012 Idol Star Athletics ChampionshipsWith Beast
2013Immortal Song 2TV Show (KBS)
Hello CounsellorGuest with Beast, Ep. 138
Weekly IdolMBCEp. 109-110 with Beast
2014Immortal Song 2KBS
Weekly IdolMBC Every1Guest with Beast, Ep. 151
Burning the BeastMBC Every1Season 2 with Beast
TV Entertainment TonightSBSWith Beast
2015Weekly IdolMBC Every1Guest (with Beast), Ep. 209
2016Hit The StageMnetContestant, Ep. 3-8

Awards and nominations

YearAwardCategoryNominated workResult
The 4th V Chart Awards
Top Male Artist-KoreaHyunseung[31]Won


  1. "I Said I Love You" did not enter the Gaon Digital Chart, but peaked at number 95 on the Gaon Download Chart.