Jia's contract with�JYP Entertainment�came to an end this past May, and she's now signed with Chinese agency�Banana Plan Entertainment. �Her second solo single is titled "Who's that Girl" and the teaser was recently uploaded on Banana Culture's official YouTube channel. The song sounds pretty good and Jia looks as beautiful as ever.

Check out the teaser above, the full release is scheduled for January 3 CST (China Standard Time).