How old is too old for K-pop?

Well, not 70, that's for sure! Fans spotted an elderly woman in her 70s (with her granddaughter) at EXO's concert - and in the standing pit, no less! And she wasn't there just for her granddaughter. She had her own lightstick, sang along to all the songs, and can be seen cheering for the boys.

According to fans, she even got close to the fans near her and sang all the songs to the end.