Ku Hye Sun is a South Korean popular actress who gained fame in the hit drama, Pure in Heart. She is well-known for portraying Geum Jan Di in KBS2 drama, Boys Over Flowers with actors Lee Min Ho, Kim Hyun Joong, Kim Bum, and Kim Joon, as well as other films she did.
Originally supposed to debut as a singer under her label YG Entertainment instead of an actress. She sang Saranga which became the title song of the drama Pure in Heart, and Shim Soo Bong's I Don't Know Anything But Love in Boys Over Flowers. She also did a duet of Kim Gun Mo's song Rain Falls on a Sleepless Night with Big Bang member Seungri on the talk show Peppermint on March 7, 2009. She revealed that she was supposed to debut with 2NE1 as a 3 member girl group with Park Bom and Sandara Park.
She held her first art exhibition Tango at Seoul Museum of Art from July 1 to 7 in 2009. According to the news of YG company, the exhibition attracted about 10,000 visitors. Her 50 pieces of work were designed and illustrated for her novel Tango as some were created even when she was filming Boys Over Flowers overseas. Meanwhile, She released her novel, Tango (탱고), on her art exhibition. The book received many good reviews for her well structured sentences and flowery diction. This book was a bestseller while it was released, selling 30,000 copies within a week. She also illustrated the cover of Gummy's album.
Ku even made her official debut as a director through her short film A Pleasant Helper at the 13th annual Puchon International Fantastic Film Festival on July 16, 2009.