Lee Su Jeong debuted in 2014 as a member of girl group Lovelyz, best known for hits "Good Night Like Yesterday" (2014), "Candy Jelly Love" (2014)" and "Ah-Choo" (2015), as well as her appearance with the group on the hit Mnet survival show "Queendom" (2019). After the group disbanded in November 2021, Lee changed her stage name from BabySoul back to her real name. She released her first solo EP "My Name" on April 26 and held 16 solo concerts in May last year.