Mnet 'SuperstarK3' top 11 Christina posted a proof of a successful diet.

Christina posted on her Twitter on the 17th "Please sleep... while in backstage room", along with a photo.

In the posted picture Christina is showing off her pale skin and bold features. Christina's neck line especially catches the attention. It has been changed to a thin V line. It is surprising compared to the Christina in the past.

Netizens who saw the picture commented "is it really Christina? She lost a lot of weight", "it's a V line", "she got really pretty", "she looks tired from the cold weather. Feel better", "the weather's really cold, please take care of your neck and health", and etc...

On the other hand, Christina will put on a dazzling performance on the stage of 'Superstar K3' top 11 concert, taking place from 17th to 18th in Seoul Olympic SK Olympic handball stadium.