Ku Hye-Sun.

Ku Hye-Sun (구혜선) is an actress managed by HB Entertainment. Another profile detail is that she’s also a novel author, solo singer and film director. Additional background says that she started off as a trainee singer under YG Entertainment but she got convinced by a CEO to pursue an acting career instead. She debuted as an actress in 2002 in KBS’s horror series “Anagram” and as a singer on June 16, 2010 through the digital single “Brown Hair” (갈색머리).