this past week here on "world news" we showed you the woman dubbed the grandma drummer, who walked into the wisconsin drum store an rocked out. Tonight, mystery solved. It all started with this... See More
this past week here on "world news" we showed you the woman dubbed the grandma drummer, who walked into the wisconsin drum store an rocked out. Tonight, mystery solved. It all started with this surprise performance. From a mystery woman who grabbed those drumsticks and delivered this. Yeah! Reporter: Tonight, a youtube sensation. But it turns out until this past week, she didn't even know what youtube was. And we didn't know who she was. But it didn't take long for this wisconsin community to throw up some answer. She's mary, 63 years old. She played the drums as a young woman. She first walked in and hadn't played for more than a decade. She remembers what was going through her mind as she sat back down. Drumsticks again. It's been awhile. I wonder if I still know how to use them. Reporter: As a young woman, she played in local bands for a group called the chantells. One of the first all-women rock bands across wisconsin. Tonight in that town, she's a star all over again. Mary, the video sensation, my newest grandma. Reporter: And the camera rolling as the owner says they'll deliver a brand-new drum set to her apartment. Are you kidding me? Reporter: The same reaction we had when we first saw the video. Regardless of whether I'm good or not or as good as I used to be, it's neat to be able to do it again. she told us today she went to nashville once. But it scared her so she went back home. That new drum set coming. Alert the neighbors.
This transcript has been automatically generated and may not be 100% accurate.