Madonna's birthday bash in the Hamptons was causing a commotion -- so someone called the cops on her over the weekend.

The superstar turned 57 Sunday and started celebrating the night before, but it was too loud for an anonymous neighbor, who complained about the noise around 2:30 a.m., said Lt. Susan Ralph of the Southampton Town police.

Officers were dispatched to Madge's home in Bridgehampton. When they arrived, all was quiet and they didn't need to go up the drive to take the Material Girl to task.

"The music had been turned down," Ralph said. "If we don't hear the music, there's no need to go any further."

Whoever complained is remaining anonymous, which is typical of neighbors, Ralph said.

"It's pretty open," she said. "It's farmland so there's nothing really blocking it. Sound travels."

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The singer's representative and neighbors were not immediately available to comment Tuesday afternoon.

According to Fox News, Madonna threw a Gypsy-themed party that was "wild" with plenty of stars. People magazine reported "Live!" co-host Kelly Ripa and husband Mark Consuelos attended, as did "Watch What Happens Live" host Andy Cohen. The celebration included Madonna's children: Lourdes Ciccone Leon, 18, Rocco Ritchie, 15, and David Banda and Mercy James, who are both under 10 years old.

Madonna posted photos on her Instagram account, including one of a birthday cake emblazoned with "Rebel Heart," the title of her latest album, and one of her hugging a new French bulldog puppy named Gypsy Rosa Lee. A big "M" was lit up to show the bar "in case we got lost," she wrote. In another photo where she is wearing roses in her hair, she wrote "Gypsy Queen."