Yun Seo Young, professionally known as YSY, is a singer, dancer, former pre-debut member of VVS (븨븨에스), and current member of H//PE PRINCESS (하입 프린세스 / ハイププリンセス; also known as HIIPE Princess, HIIPE P and H//PE P (하이피)).

She was among seven trainees training to be a part of the lineup for MZMC Inc.'s first girl group VVS, but was the last person to be cut from the lineup due to the founder and CEO of the company stating that he felt like she "had a different path than the group".

In June 2024, she then ended up debuting as a soloist under the company instead, under the stage name "ysy" with the collaboration single "Love Me No More (DYK Remix)" alongside YUNGIN, sokodomo, DOK2, KOALA, and DYK.

In September 2025, she entered the Mnet survival show "Unpretty Rapstar: Hip Pop Princess" under her birth name Yun Seo Young, where she ranked 4th place, thus earning her a spot in the resulting debut group. They made their debut in both South Korea and Japan simultaneously in May 2026 with the mini album "17.7".

(Source: kisskh) Edit Biography