Girl group Girls' Generation showed off their beauty on stage at the 'Gangnam Festival'.

On October 7, Girls' Generation attended the 'Hallyu Festival K-Pop Concert' in Gangnam and captured the hearts of male fans.

Girls' Generation sang many of their hit songs such as "Gee" and"Oh!" and showed off their sexy outfits. They also wore skinny jeans with a white t-shirt and showed off their innocent and pure image as well.

Internet users commented, "They are all so skinny and pretty" and "Their popularity is crazy."