?We saw a lot of photos of Girls' Generation on stage for their first stop of their world tour, and Eunhyuk also gave us a little peek behind the scenes, but if that wasn't enough for you, the girls have released a bunch of photos from backstage!

The photos were released via Naver's Starcast. The photos show the girls' fooling around with other SM Entertainment celebrities backstage. Comedian Kim Shin Young also came to cheer Sunny and Yuri, as the trio got close on 'Invincible Youth'.

Check out the photos below!

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