Girls' Generation (SNSD) already became the queen group.

In SBS "Strong Heart" aired ont he 12th, Girls' Generation's Sunny came out and talked about things that changed about them recently.

Sunny was asked, "When do you feel most old?" and she replied, "When we come down after finishing our stage, junior groups line up on the side by the wall. They bow 90 degrees. It's quite embarrassing to walk through all of that."

Hyoyeon said to the same question, "It's the most different when we dance. We used to be okay even after dancing to 5~6 songs. But now, after we dance to 2 songs, our throats start burning."

Photo Credit: SBS