Madonna may be getting into the groove, but a neighbor in her posh upper West Side building is burning up because she says the Material Mom is causing a commotion.
Karen George filed a lawsuit Friday night against the board of directors of her Central Park West building, charging that her famous downstairs neighbor has subjected her to "pounding noise and vibration" by allowing her sprawling triplex to double as a dance rehearsal studio.
The suit says the building's management has "curiously" abandoned efforts to silence the ruckus coming from Madonna's apartment.
"Madonna and one or more of her guests repeatedly dance and/or train in Apartment 7-A to unreasonably high-decibel amplified music," says the suit filed in Manhattan Supreme Court.
George's suit follows a failed 2007 attempt by the board to stop Madonna's purchase of a third unit in the building.
A Madonna mouthpiece didn't respond to e-mails, and George couldn't be reached for comment.

nydailynews