1PS' official Facebook�posted her photo and wrote, "Revealing 1PS' second member. Please show a lot of interest to Yoonseo~?". Yoonseo graduated from an art middle school and an art high school, and she's talented in various things such as ballet and singing.

SEE ALSO: Debut girl group 1PS reveals first member Yena

1PS is short for '1PIECE-SCORE', meaning one music score, and that the four girls will be singing one song by matching each other's harmony.�

The girls will be debuting in early March.