In 2009, original member Jung Hye Min left the group and was replaced by Misty.

On November 17, 2011, original member Hee Young was announced to leave the group after finishing the promotion of the digital single "Gaseyo".

Their last original member Sihyun left from the group after her contract had expired in 2016 and was replaced by Seorin.

In December 2022, Jenny announced through her social media that she, Geonji and Seorin had ended their contract with GoodFellas Entertainment in March 2022.

[3][4] On May 8, 2023, DSP Media officially announced the audition to find new members for Gavy NJ.