Girls’ Generation started their 2013 Girls & Peace world tour at the Olympic Park in Seoul last week. Right after their anchor "Oh!" (the title song of the group’s 2nd album) -- Jessica was having leg cramps. It’s not that surprising to have a leg cramp after dancing and running around on stage for three hours straight.

And Girls’ Generation's member's sense of humor comes in handy for this unexpected incident. The rest of the members surrounded collapsed Jessica, shouting “ya-ong” (meow in Korean) as if to catch a mouse. It’s because having cramps in Korean has the word that sounds the same as “mouse.” Classic, right?