Singer BoA's back body was revealed.

Recently in an online community forum, several pictures were posted under 'BoA, muscles better than men's.'

In the picture, her perfect body caught the attention of many. She wore a short shirt that revealed her back muscles.

Internet users who saw this commented, "She has such a nice body," "She must have exercised a lot," "Fit body," and "Pretty face, flawless body."

Photo Credit: Online Community