F(x) Amber uploaded a guess who picture few minutes ago in her me2day account.

Original message:

여러분! 사람 누굴까요?? ㅋㅋ 우리 수정이에요 귀엽죠? 제가 이렇게 해줬어요 ㅋㅋ 여러분 Melody 보셨죠? 막내 뮤비 촬영하고 있을때 놀러갔었는데 제가 찍은 사진 오늘부터 하나씩 업데이트할게요. 번째도 기다려 주실거죠? ㅋㅋ

In English:

Everybody! Who is this person?? ㅋㅋ It’s our Su Jeong Isn’t she cute? I did it like this ㅋㅋ Everybody, did you like ‘Melody’? Took this picture when the maknae was filming and I will release the pictures one by one. Are you waiting for the second one? ㅋㅋ

Source: F(x) Amber me2Day
Credits: AA CHAN