Group KARA's Nicole revealed her abs and back muscle.

Yesterday, Nicole posted through a mobile messenger for KARA, "One nice day out, Nicole worked out" along with a picture that revealed her fit body.

In the revealed picture, Nicole has clearly defined stomach abs and back muscles, revealing through a tanktop that was tied up. Nicole, who is usually known to take care of her body well, seemed to have maintained her body even through busy schedules.

Internet users who saw this commented, "Shocking," "Valuable body," "That's hard to do even for guys," and "Cute face, nice body."

Photo Credit: DSP Media