"Grandma Drummer" — Mary Hvizda — in action. Coalition Drum Shop video hide caption toggle caption Coalition Drum Shop video The Two-Way VIDEO: 'Grandma Drummer' Says She Loves To Play July 22, 2013 • Mary Hvizda went viral when a Wisconsin drum shop posted video of her wailing away. At first, her identity was a mystery. But now we know who she is — and that while she's not really a grandmother, she does love to rock.
