Jennifer Lopez left employees at one top boutique exhausted by her diva behaviour, after she demanded a number of unreasonable expectations from them.

The new mother went shopping at the Catherine Malandrino boutique on Manhasset’s Miracle Mile last week, near where she lives with husband Marc Anthony, but store assistant hardly consider her to be a friendly neighbour.

A spy tells Page Six: "She demanded the store be shut down for her to shop alone, but they said, 'Absolutely not.

"Then one of her eight-person entourage, including two bodyguards with their guns showing, was yelling at the clerk that Jennifer gets a 50 percent discount.

Jennifer also tried on about a million outfits, then just threw it all in a pile in the dressing room and didn't buy one thing."