Ha Sung Woon, born in Goyang, Gyeonggi-do, is a South Korean singer under Big Planet Made. Previously signed under Star Crew Entertainment (previously known as Ardor and Able), he debuted with Hotshot, working from October 2014 until October 2021. He later signed with YMC Entertainment & Swing Entertainment while carrying out activities with the temporary-group Wanna One from August 2017 to December 2018.
He debuted in Hotshot as a main vocalist and dancer in 2014. In 2017, he survived Mnet’s “Produce 101 Season 2“ and qualified to be a member of the boy group Wanna One, the group’s contract lasted for one year and six months. After finishing his activities with Wanna One, he continued his career as a soloist. He made his solo debut with "My Moment" on February 28, 2019.
Ha enlisted for his mandatory military service on October 24. 2022 as an active duty soldier and is expected to be discharged on April 23, 2024.