Wonder Girls (Hangul: ์๋๊ฑธ์ค) was a South Korean girl group under JYP Entertainment. Its final line-up consisted of four members: Yubin (์ ๋น), Yeeun (HA:TFELT), Sunmi (์ ๋ฏธ) and Hyerim (ํ๋ฆผ). The group debuted in early 2007 with the single Irony (์์ด๋ฌ๋) and five members: Yeeun, Sunye, Sunmi, HyunA (ํ์) and Sohee. Former member HyunA left the group in June of 2007 due to health issues. After Hyuna's departure in July, Yubin was added into the group prior to the release of their debut studio album, The Wonder Years. Read more on Last.fm