Girl group Girls' Generation revealed additional teaser images yesterday for their 4th album I Got a Boy.

Yesterday SM Entertainment posted teaser images of Sunny, Tiffany, Jessica, Sooyoung, Taeyeon, Yoona, and Yuri through Facebook, Twitter, and Girls' Generation's website.

In the teaser images, Girls' Generation members matched to the theme of 'funny funky,' portraying a punk look.

Their 4th Korean album I Got a Boy will be released on January 1st, 2013.

Photo Credit: SM Entertainment