Seo Minwoo from Top Media's K-pop group, 100%, was found unresponsive and without a pulse on the night of March 25 at his home in Seoul.

The 33 year old singer and actor had suffered an apparent cardiac arrest and emergency services responders pronounced him dead at the scene.

Top Media released a statement about the singer's shocking passing. "His family, the 100% members, and the Top Media artists and staff members are all grief-stricken and in mourning from the unexpected, sad news." The family requested a private and quiet funeral. The remaining members of 100% also released a statement to their official Twitter page, which can be read below.

Original Tweet from @TOP_100PERCENT Twitter

Seo Minwoo was the eldest member and leader of 100%, a group that debuted in 2012 under Top Media. Before his debut as a K-pop singer, he was an actor, appearing in dramas The King and I and New Tales of a Gisaeng as well as the Korean film Where Are You Going.

Sources (1), (2)