Juyeon Announces Graduation From After School

Han Myung-Gu/WireImage

Juyeon of South Korean girl group After School performs onstage during the Mnet 'M CountDown' at CJ E&M Center on June 20, 2013 in Seoul, South Korea.

An original member of the K-pop girl group, the singer leaves after more than five years with the act.

As the only K-pop act to have an admission and graduation system, After School ends 2014 saying goodbye to one of its original members Juyeon.

One of the original five members of After School that debuted in 2009, Juyeon is now the fourth girl to graduate from the act. While membership changes are nothing new in K-pop, After School has a built-in admission/graduation concept to seemingly avoid any awkwardness if a member looks to pursue other opportunities. Original group leader Kahi graduated from the group in 2012, but remained signed to Pledis as a solo artist. Jung-Ah, the current leader, is the only original remaining member while the other six girls were added throughout the years. There is no news of a new member being added.

While After School didn't actively promote in Korea this year, the girl group dropped a new Japanese album and began promoting in China. The group's most-recent single, 2013's "First Love," peaked at No. 7 on the Billboard K-Pop Hot 100.