COiBLEN, formerly known by his stage name Seyoung (세영), is a South Korean singer best known as the former main vocalist of the boy group CROSS GENE. He joined the group in January 2013, following the departure of J.G., who left to pursue a solo career. COiBLEN remained with CROSS GENE until November 2020.
As a solo artist, COiBLEN made his debut on January 29, 2019, with the release of the single "Winter Rain." He later rebranded under the stage name COiBLEN (코이블렌) and released his single "Loop" on October 16, 2021.
COiBLEN released his first EP, *Colors*, on March 8, 2024, and has recently followed up with his second EP, *InTheRoom*, released on September 9, 2024. The new EP is available on YouTube and major music platforms like Spotify. Be sure to check it out and follow his social media accounts for updates!