"Every time she comes in, we think, 'Man, we should video tape this' and we finally did," Coalition Drum Shop manager Dustin Hackworth told News 8 last Friday, referring to the nameless senior citizen who regularly rocks out at the La Crosse, Wisconsin establishment, before disappearing into the night.

It was just another day at the Coalition Drum Shop in La Crosse, Wisconsin, when in came a mysterious grandma who proceeded to blow everyone away with her unexpected skin-slapping prowess.