Yoo Seung Eon is a South Korean singer, dancer, and former member of EVNNE (이븐). He graduated from Hanlim Entertainment Arts High School, focusing on Applied Music. He is enrolled in the Broadcasting Entertainment program at Global Cyber ​​University.

Before debuting, he spent 3 years and 9 months as a trainee at SM Entertainment, and in 2022, he moved to YH Entertainment (YH엔터테인먼트; formerly known as Yue Hua Entertainment).

In 2023, he entered MNet's "Boys Planet", but he ended up in 16th place. However, Jellyfish Entertainment (젤리피쉬엔터테인먼트) reached an agreement with several agencies and decided to create a second project group (alongside ZEROBASEONE) with the contestants outside the Top 9. Originally, the group's name was set to be BLIT (short for "Boldly Leaping into Tomorrow"), but after careful discussions, it was decided to change it to EVNNE (short for "Evening's Newest Etoiles").

He made his debut in September 2023 as the group's main vocalist with their first EP, "Target Me". According to his original contract, the project was planned for 18 months. In December 2025, Jellyfish announced that it had reached a new agreement to formally continue EVNNE as an established group. However, YH did not agree to these terms and as a result, he left had to leave in January 2026 and returned to his agency.

(Source: kisskh) Edit Biography