Gu Hye Seon is a South Korean actress, singer, songwriter, and director. She is best known for her roles in the television dramas "Pure in Heart", "Boys Over Flowers", "Angel Eyes", and "Blood". Hye Seon entered the entertainment industry after gaining popularity on the internet as an ulzzang (meaning "best face" or "good-looking"). She began her acting career in one-act dramas and the sitcom "Nonstop 5". She was also co-MC with Super Junior's Heechul on SBS's weekly live music show "Inkigayo" from April 23, 2006, to February 18, 2007. Hye Seon soon rose to fame in the drama "Pure in Heart" and surprised critics with her performance in the historical drama "The King and I".
On March 11, 2016, her agency, YG Entertainment confirmed that she is dating her co-star from the drama "Blood" Ahn Jae Hyun since April 2015. On April 8, 2016, it was announced that the couple will tie the knot on May 21, 2016.