It seems that Charlene Choi and Gillian Chung are still close with each other, even though they are no longer in a band together.
According to Asian E-News Portal, former Twins member Charlene posted on her micro-blog that she is very excited to receive Gillian's autographed album, and will buy 20 of them to show her support.
Along with the post, she uploaded a photo of her posing with a signed copy of the album.
Charlene said she received the new autographed album by courier and asked her fans and followers not to envy her.
Gillian followed up with a reply, saying: "Yeah Yeah Yeah! Love you! 'Niang Niang 娘娘', I will sign no matter how many copies you want it!".
Charlene then wrote, alluding to an inside joke that she will not call her an "incapable ruler" again.