Wonder Girls' member Hyerim revealed a picture taken with singer Baek Ah Yeon.

"Pretty Ah Yeon, have a good time on the stage," posted Hyerim on her Instagram on Thursday along with a picture.

In the picture, Hyerim and Baek are linking arms- smiling brightly at the camera.

Baek appeared on Mnet "M! Countdown" on this day and performed her comeback song.