Lee Dong-min or better known by his stage name Cha Eun-woo, is a singer and actor under the entertainment agency Fantagio from South Korea. Cha Eun-woo is a member of the boy group Astro. Lee Dong-min, aka Cha Eun-woo, was born on March 30, 1997, in Gunpo, Gyeonggi Province, South Korea. Eun-woo has been active in the South Korean entertainment industry since 2014 and joined the Fantagio label. He is also a member of the four-member band ASTRO, who released their debut mini album Spring Up with the title track Hide & Seek on February 23, 2016.