Girls' Generation, also known as SNSD, the acronym of So Nyeo Shi Dae is a large nine member girl group formed in 2007 by SM Entertainment. The group debuted on SBS Inkigayo on August 5, 2007, performing their first single, "Into the New World". The members are (in order of official announcement) YoonA, Tiffany, YuRi, HyoYeon, SooYoung, SeoHyun, TaeYeon (the leader), Jessica, and Sunny. They are said to be a multilingual group. Aside Korean, they are said to know English, Chinese, and Japanese. Both Jessica and Tiffany have been raised in America, HyoYeon traveled to Beijing in 2004, and SooYoung started out in the Japanese entertainment business first in the girl group Route-O in 2004.