2007–2008: Debut and Girls' Generation


In July 2007, Girls' Generation had their unofficial first stage performance on Mnet's School of Rock where the group performed their first single, "Into the New World" (다시 만난 세계). A documentary recording the story of the group's debut titled Girls' Generation Goes to School was filmed por Mnet during this time, revolving around their unofficial debut and first public performances through School of Rock.

Girls' Generation in February 2008 performing at Rajamangala Stadium in Bangkok, Thailand
The group's first single was physically released...