Their next tour, The First Japan Tour in support of their first Japanese studio album Girls' Generation was played to more than 300,000 people, and saw two sold-out audiences at the Saitama Super Arena to a combined audience of 74,000 people.
Tur mereka berikutnya, The First Japan Tour untuk mendukung album studio pertama mereka di Jepang Girls' Generation dimainkan untuk lebih dari 300.000 orang, dan melihat dua terjual habis penonton di Saitama Super Arena kepada khalayak gabungan dari 64.000 orang.