Jang Woo-young (Korean: 장우영; born April 30, 1989), known mononymously as Wooyoung, is a South Korean singer-songwriter and entertainer. In 2008, he debuted as a member of 2PM, a boy band currently managed by JYP Entertainment. He debuted as a solo artist in 2012 with his first extended play, 23, Male, Single. As of 2026, he has released a total of six EPs and one compilation album.
Following his discharge from his mandatory military service in 2020, Jang has worked as a television personality on various Korean variety shows such as Beat Coin, I Can See Your Voice, and Street Man Fighter. He is currently a cast member for the Netflix variety program Screwballs. He is also known for his role as Jason in the 2011 Korean drama Dream High.
Born and raised in Busan, Jang enjoyed dancing from a young age but was forced to hide his interest from his father, who had strongly disapproved of his ambitions to become a dancer due to the lack of job stability. In 2007, he secretly applied for JYP Entertainment's first open audition and uploaded clips himself dancing on the website Mgoon, an early Korean predecessor of YouTube. He eventually beat thousands of applicants and placed first, with future Highlight member Yoon Doo-joon placing second.
Upon moving to Seoul to begin training under JYP Entertainment, he attended Seoul Institute of the Arts as a dance major. In 2009, he began an undergraduate degree in broadcasting at Howon University, the same university his bandmates Lee Jun-ho and Hwang Chan-sung attended.
In 2008, he participated in Mnet's Hot Blooded Men, a program that chronicles the rigorous training of thirteen aspiring trainees, all vying for a coveted spot in the boy band One Day. This initiative ultimately led to the formation of two distinct boy bands, namely 2AM and 2PM.
Half a year following the televised airing of Hot Blooded Men, the group 2PM made their debut with the release of their inaugural single "10 Out of 10" from their first single album titled Hottest Time of the Day. However, it was their second single album, 2:00PM Time For Change, that propelled them to mainstream success in Korean music, solidifying their meteoric rise. As of 2021, the group has released seven studio albums in Korea and five studio albums in Japan. Jang has written and composed several songs for the group, including "Make It", the title track of their seventh studio album, Must.
In 2022, Jang held a joint fan-concert with bandmate Jun. K titled 115430 in Seoul on April 30 and May 1, with the latter show also being streamed online via Beyond Live. He has also participated in activities of the unofficial 2PM sub-unit ENWJ with Jun. K and Nichkhun, holding events and concerts with the group since 2023.
On May 24, 2012, JYP Entertainment announced that Jang would release his debut solo album in early July. On June 28, he performed two of the album's tracks at the Mnet 20's Choice Awards: "2Nite" and title track "Sexy Lady". The EP, titled 23, Male, Single, was released on July 8 and included two songs composed and written by fellow 2PM members Jun. K and Lee Jun-ho. He held a mini-showcase on July 9 and appeared on TV music programs such as Mnet's M Countdown starting from July 12 as part of the mini-album's promotion. The EP peaked at number two on the Gaon Weekly Album Chart and stayed on the chart for six consecutive weeks.
In September 2012, Jang, along with J.Y. Park, his bandmate Ok Taec-yeon and miss A's Suzy, promoted the clothing line Reebok's "Classic Campaign" with a collaboration song titled "Classic". In December 2013, Jang collaborated with 125 artists including his bandmates Jun. K, Nichkhun, and Hwang Chan-sung for a single titled "You Are a Miracle" for the 2013 SBS Gayo Daejeon, the proceeds of which were donated to charity. In 2014, Jang released two duets: "Holding Hands Together" (깍지 낀 두 손) with Park Se-young as part of the MBC variety show We Got Married and "Fireflies' Glow" (반딧불을 따라서) with indie singer Lel.
Jang made his solo debut in Japan on March 4, 2015 with the single album R.O.S.E, while concurrently holding a concert tour with the same name with nine shows in Tokyo, Osaka, and Nagoya from February 19 to March 11. R.O.S.E peaked at number two on the Oricon Daily Singles Chart and number five on the Oricon Weekly Singles Chart. On April 20, he released a Korean version of the single album, which peaked at number four on the Gaon Albums Chart and stayed on the chart for six consecutive weeks.
In 2017, Jang released two EPs in Japan: Party Shots on April 19 and Mada Boku Wa... (まだ僕は・・・; Still Here...) on October 11. Both mini-albums peaked at number two on the Oricon Weekly Albums Chart. In addition, both EPs were released in the midst of a solo Japanese concert tour: Party Shots from April 5–30, which ended on his birthday, and Mada Boku Wa... (まだ僕は・・・; Still Here...) from September 29 to December 6, which ended with two concerts at the Nippon Budokan. On October 11, Jang released the single "Still Here" (똑같지 뭐), a Korean version of the title track "Mada Boku Wa..." (まだ僕は・・・; Still Here...) from the EP of the same name.
On January 15, 2018, Jang released his second Korean EP titled Bye (헤어질 때), which included Korean versions of two songs from his Japanese EP Party Shots, "Going Going" and "Party Shots". During his week-long promotions for the mini-album, he performed "Don't Act" and title track "Quit" (뚝) on TV music programs. Bye peaked at number four on the Gaon Albums Chart and stayed on the chart for four weeks. Jang then held a series of eight concerts titled Eh? Call! (엥? Call!) in Seoul, Tokyo, Osaka, and his hometown of Busan from February 9 to April 29, marking his first solo concerts in South Korea.
An episode of the MBC show Song One – The Song of My Life featuring Jang as a guest aired on September 30, 2018, having been filmed prior to his enlistment for his mandatory military service. In the episode, Jang performed a cover of the 2003 song "Think About' Chu" by Korean indie band Asoto Union; the cover version was released as a digital single the next day.
In 2023, as part of a project for the variety show Beat Coin, Jang collaborated with his castmates on the song "Never", written and composed by Rado of Black Eyed Pilseung. Later that year, he collaborated with BtoB's Seo Eun-kwang and their team of contestants from the TV show King of Karaoke: VS on a cover of BtoB's song "Naviety".
On June 7, 2023, Jang released his third Japanese EP titled Off the Record, which consisted of five tracks including a title track of the same name, while holding a solo concert tour with the same name from May 24 to June 11 with five dates in four cities: Fukuoka, Yokohama, Tokyo, and Osaka. In 2024, he held his first solo fan meetings titled Be Young in Seoul on August 3–4, Busan on September 28–29, Osaka on December 14–15, and Yokohama on December 21.
On June 23, 2025, Jang released a digital single titled "Simple Dance", his first solo Korean release in seven years. He released his third Korean EP titled I'm Into with the title track "Think Too Much" featuring rapper Damini on September 15 and held a concert titled Half Half in Seoul on September 27–28. In commemoration of the tenth of his anniversary of his debut as a solo artist in Japan, he released his first compilation album titled 3650.zip, with two new tracks: "Reason" and a cover of the self-composed song "Yo Moriagatte Yo" (Yo モリアガッテ Yo), originally released by his former labelmates Got7. In conjunction with the release, he brought his Half Half concert series in Tokyo on November 29–30 and Kobe on December 27–28. He also held a Half Half concert in Taipei on March 8, 2026, marking his first concert as a solo artist in Taiwan.
Jang and fellow 2PM member Ok Taec-yeon hosted SBS's music show Inkigayo with actress Ha Yeon-joo from July 2009 to January 2010 and with f(x)'s Sulli from February 2010 to July 2010. From February 2, 2010 to August 3, 2010, he starred as an assistant MC on Kim Seung-woo's KBS talk show Win Win alongside Girls' Generation's Taeyeon.