Wikipedia
Apink (, ; also written as A Pink) is a South Korean girl group formed by Plan A Entertainment (formerly A Cube Entertainment) in 2011. The group consists of Park Cho-rong, Yoon Bo-mi, Jung Eun-ji, Son Na-eun, Kim Nam-joo and Oh Ha-young. Hong Yoo-kyung left the group in April 2013 to focus on her studies.
The group has released five Korean extended plays and two studio albums. In April 2011, Apink released their first extended play (EP), Seven Springs of Apink, and performed a song from it, "Mollayo" (; "I Don't Know"), on Mnet's M! Countdown. The group has continued to perform live and on television shows since then. Apink released their first Japanese-language single, " NoNoNo", in October 2014. Their fifth Korean EP, Pink Luv, released in November 2014, debuted at No. 1 on Gaon's weekly album chart.