Ha Sung-woon (; born March 22, 1994), also known mononymously as Sungwoon, is a South Korean singer and songwriter. He is best known as a member of South Korean boy group Wanna One, as a member of boy group Hotshot, and currently as a solo artist. In 2019, he began his solo music career with his first extended play My Moment.

Career

Prior to 2017

Ha joined Star Crew Entertainment (formerly known as Ardor&Able) and debuted with Hotshot as main vocalist on October 29, 2014, with a digital single "Take a Shot".

Ha Sung-woon

2017–2018: Produce 101 and Wanna One

Ha and Roh Tae-hyun represented Ardor&Able Entertainment in the boy group reality survival show, Produce 101 Season 2 which aired on Mnet from April 7 until June 16, 2017. In the final concert that took place on July 1 and 2, 2017, at Olympic Hall in Seoul, Ha managed to gain 790,302 votes and was announced as the final member of the project boy group Wanna One under YMC Entertainment.

Ha Sung-woon

Ha debuted with Wanna One during Wanna One Premier Show-Con on August 7, 2017, at the Gocheok Sky Dome with a mini-album 1×1=1 (To Be One). He was also in the sub-group Lean on Me with Hwang Min-hyun and Yoon Ji-sung, performing the song "Forever and a Day" produced by Nell. The subunit was announced on the first day of Wanna One Go: X-Con, and the song was included on Wanna One's album 1÷x=1 (Undivided).

Ha Sung-woon

During his time with Wanna One, Ha was invited to join several TV programs, such as the eighth episode of SBS variety show Master Key, Law of the Jungle Sabah, which aired from July 27 to September 21, 2018, and MBC singing competition program King of Masked Singer, in which he got to the third round with his rendition of "Smile Again" by Rumble fish, "Drifting Apart" by Nell, and "Appearance" by Kim Bum-soo.

His contract with Wanna One ended on December 31, 2018, but he still appeared with the group until their final concerts (titled "Therefore") held across four days, ending on January 27, 2019, at the Gocheok Sky Dome in Seoul, where the group held their debut showcase.

2019: Graduation, solo debut, and solo activities

On January 28, Ha unveiled his self-composed song "Don't Forget" featuring former Wanna One member Park Ji-hoon. "Don't Forget" was released as a pre-release track from his EP My Moment, with lyrics about wishing to cherish memories with loved ones.

The singer began his solo activity by announcing his first two-day fan-meeting, "My Moment", which was held from March 8–9 at the SK Olympic Handball Gymnasium in Olympic Park, Seoul. The tickets went on sale on February 20 and sold out within two minutes of the pre-order becoming available. He was also scheduled to meet fans in six Asian cities including Tokyo on March 17, Osaka on the March 19, Taipei on March 23, Bangkok on March 30, Hong Kong on April 5, Macao on June 8, and Jakarta on June 22. While preparing for his solo debut, Ha showed his bright side in the interview and pictorial with The Star Magazine. He also did a photoshoot with Allure magazine, where he mentioned the EP. In between his schedule, the singer attended his graduation ceremony at the Dong-ah Institute of Media and Arts on February 22, 2019.

My Moment was released on February 28, 2019, featuring the upbeat lead single "Bird". The singer held a showcase at Live Hall in Gwangjin-gu, Seoul on February 27. The album consists of five tracks, which were all written and composed by Ha himself. He also served as the executive producer and participated in the production process, such as mixing and mastering. Hanteo reported that 45,600 copies of the album were sold on the first day of release, making My Moment the third-highest first-day sales for an album. It also became the first number one on the Gaon retail album chart, which began on March 4. My Moment topped the ninth week (February 24 – March 2) of the main Gaon Album Chart, and ranked first on the daily charts of February 28, March 2, and March 3. On March 1, Ha performed the songs "Bird" and "Tell Me I Love You" at One K Concert—a three-day music and art festival—at the Yeouido Parliament House grass field, which was held to commemorate the hundredth anniversary of the March 1 Movement and aims to spread the hopes of the reunification of the Korean Peninsula and peace in Northeast Asia and the world.