Girl's Day's Sojin showed her fans how ants cry.

On the 30th, a fan asked Sojin, "What kind of noise do ants make?" The phrase for 'animal sound' is the same as the phrase for 'to cry' in Korean, so Sojin wittily replied, "This is how ants cry," and uploaded a photo of herself with Yura and Hyeri making a crying face at the camera.

She was referring to her new nickname 'ant waist'; a name she received after it was revealed her waist was a mere 22 inches.