Girl group Girls' Generation (SNSD)'s leader TaeYeon showed a tough side to member Yoona.

Recently in an online community forum, a short video clip was posted under 'Scary leader TaeYeon grabbing Yoona by the neck at a mall.'

The revealed video was when SNSD visited the SMTOWN Pop-up Store on the 2nd. TaeYeon grabbed Yoona by the neck and shook her, but she smiled brightly and let her go when Yoona whispered something into her ear.

Internet users who saw this commented, "What happened?," "They're just joking around, they seem to be having fun," "I think all members are close to each other," and "I want her to do that to me too."

Photo Credit: Online Community