About SNSD (Girls' Generation)

 Wikipeadia Definition - "Girls' Generation (Korean소녀시대Hanja少女時代So Nyeo Si Dae ) is a popular nine-member South Korean girl group formed by SM Entertainment in 2007. The nine members are: TaeyeonJessicaSunnyTiffanyHyoyeonYuriSooyoungYoona and Seohyun. They are often referred to as SoShi (소시), or SNSD (mainly outside Korea), the first of which is an abbreviation and the second an acronym of the group's Korean name So Nyeo Shi Dae. In China and Taiwan, they are known as 少女時代 (Shàonǚ Shídài; or Siu Nui Si Doi in Hong Kong) and in Japan as 少女時代 (Shōjo Jidai)"

Our Definition  (Simple) - Girls' Generation (commonly known as SNSD (which means So Nyeo Shi Dae for short) is 9 beautiful Korean singers.
They got mainly known all over the world when they released their first mini album "Gee", the video hit on YouTube and made 1000's of fans for them. Currently the video has over 40 million views.
Then they released their 2nd mini album "Oh!" which made a smash again on YouTube and as well in other Asian countries' charts.
They are most admired because of their dance and beauty, but also before "Gee" their song "into the new world" was truly beautiful sung by them :D 

Watch "Gee" The smashing Hit by Girls' Generation!