Kim Yoon-ji is a South Korean actress and former singer. She performs under the stage name NS Yoon-G and debuted in 2009 with the digital single "Head Hurts" under JTM Entertainment. The "NS" in her name initially stood for "New Spirit", but was later changed to "New Star". Kim used her Korean name as a part of her stage name as she found "Christine" too difficult for Korean people to pronounce.