Girls' Generation (Sonyeo Shidae or So Nyuh Shi Dae) is a nine-member South Korean pop girl group formed by S.M. Entertainment in 2007. They are also referred to as SoShi (소시) or SNSD by their fans, both abbreviated forms of the group's Korean name.
They gained notoriety at the beginning of their career with songs like "Into The New World", "Kissing You" and "Baby Baby". Establishing their image as the girl next door, very much like Britney Spears in the beginning of her career. However, it was not until 2009, they gained immense popularity with the song "Gee", which holds the record for being the longest running No. 1 song on KBS Music Bank, having held the No. 1 chart ranking for nine consecutive weeks. "Gee" was named song of the decade by the Korean music site, Melon.