Things seem quite unstable in the K-Pop sphere lately, particularly in girl groups, as members are more frequently leaving. �Previously, two members, Jiyul and Ga Eun, said farewell to their group Dal Shabet.�

Now, on December 17, agency MBK Entertainment's CEO Kim Kwang Soo stated, "Dia members Chaeyeon and Cathy have decided to leave the group in order to try out for 'Produce 101.' �We ask for a lot of support for Chaeyeon and Cathy, who are going on a new path. �Dia plans to now promote as five members rather than seven."

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The program the two girls will be trying out for is 'Produce 101,' a new Mnet survival series that takes trainees from different agencies and have them compete to debut as a project group. �It's interesting that idols who already debuted left to become trainees again in order to try out for a new group! �

The two of them wrote via Facebook, "We ask for a lot of interest and support in our new challenge. �Please be careful of the cold in the remarkable cold." �Good luck to you, girls!