SISTAR Hyorin revealed her sexiness even in training outfit, attracting much attention.

Today, one online community forum posted a picture of SISTAR during MBC "Idol Star Athlete Championship."

During the championship where 150 idol members gathered, SISTAR members showed great teamwork through their athletic bodies. Of them, Hyorin revealed the sexiest body despite the casual training clothes she was wearing.

Internet users who saw this commented, "Hyorin is so sexy" and "Hyorin catches everyone's attention."

Photo Credit: Online Community