Girls' Generation (SNSD) Yoona Catches The Attention With Her Hidden Muscles

Girls' Generation member Yoona's hidden abs from a year ago is becoming a hot issue once more.

Yoona was selected as a model for an outdoors clothing brand along with actor Lee Min Ho, showing off her impressive stomach line.

In the revealed photo, Yoona is posing as if she is rock climbing in a pink tank top. Beneath the cut-off tank top, viewers can see her muscular stomach.

Though this photo is already a year old, it is once again becoming a hot issue under the title "Yoona's Abs."

Those who saw the photo commented "I thought she was thin, but she had unexpected muscles," "I wonder what her secret is," and "It's good to see her look healthy."

Photo Credit: Online Community