This old chick really swings baby...

Mary Hvizda became a YouTube sensation, when a clip of her rocking a drum kit in Wisconsin went viral last week.

Although Mary has been called the "grandma drummner", she never had children and before last week, did not know what YouTube was, because she does not own a computer, which makes her even cooler in my book.

Mary started drumming around age 15 and played in various bands till about age 40.

Check out her impressive skills on the skins in this video.