Younha (Korean: 윤하, Japanese; ユンナ) is a South Korean singer and songwriter under C9 Entertainment. She originally debuted in Japan with the single "Yubikiri -Japanese version-" on October 20, 2004 before officially debuting in South Korea on December 17, 2006 with her debut stage on SBS's Inkigayo for the digital single "Audition".
