Sung Soo Jin, who was noticed for her powerful vocals on�SBS' 'K-Pop Star', is speculated to have undergone cosmetic surgery to reduce the size of her jawline.

A photo of Sung Soo Jin and the director of ID Dentistry and Hospital, which specializes in jaw surgery, was posted on the clinic's official website. Netizens seem certain that she received jaw surgery as comedian Kang Yoo Mi reduced her jawline at the same clinic last year.

Compared to her appearance on season one of 'K-Pop Star', her jawline in the latest photo is noticeably sharper and slimmer. Netizens commented, "It's so obvious that she got her jaw done," "She looks like a celebrity now," "I heard jawline surgery really hurts," and�more.

Source & Image: TV Report via Nate