Park Soo Bin (박수빈) is the Main Vocalist of the girl group Cosmic Girls under Starship Entertainment. She's also part of the sub-unit 'Sweet'. Soobin is considered as the Happy Virus of the group.
She debuted as a member of the group on February 25, 2016 with their first mini album Would You Like? and later debuted in their first unit WJSN Chocome on October 7, 2020 with the single album "Hmph!".
On May 9, 2023, she debuted as a member of the virtual project group FE:VERSE under the name KimSerena (김세레나).