On February 6, Keyeast Entertainment stated, "Subin is not only a musician, but she's a multi-talented artist who can do variety, MC-ing, and acting. We're happy to sign with Subin, who has the potential for a lot of growth. We'll do our best as a partner who plays a positive role in the activities and growth of artists based on Keyeast's professional management system."
Subin debuted with Dal Shabet in 2011 with the mini-album 'Supa Dupa Diva'. She and group members Ahyoung and Serri left Happy Face Entertainment in December of 2017.
Keyeast Entertainment is also home to Bae Yong Joon, Son Hyun Joo, Uhm Jung Hwa, Han Ye Seul, Jung Ryeo Won, Joo Ji Hoon, Kim Hyun Joong, Kim Soo Hyun, So Yi Hyun, In Gyo Jin, Kim Dong Wook, and Woo Do Hwan.