All hail Jennifer Lopez, queen of the bodycon dress.

The singer celebrated her 46th birthday on Friday night, and, of course, chose an eye-popping ensemble for the occasion.

Dressed in a skin-tight little black dress, the “American Idol” judge looked amazing as ever. The frock featured a very low neckline; cutouts along the shoulders, chest and stomach; and large sheer panels that left little to the imagination.

The “Booty” singer accessorized with a plain black clutch, layered bangles and a pair of simple, two-strap heels.

Lopez kept her newly cropped locks down and tousled to perfection. She was also sporting her signature smoky-eyed look, complete with a bronzed complexion and nude lips.

The star spent her night partying at 1Oak in Southampton, N.Y., with friends, including rapper French Montana — who posted a photo of himself, Lopez, Fat Joe and Thalia on his Instagram page — and Casper Smart.

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