Jlo bday lead
Credit: Getty Images (2)

Is this what 46 looks like? On Saturday night Jennifer Lopez showed up at her birthday bash, held at 1OAK in Southampton, N.Y., looking amazingly hot.

Clad in a black sheer cutout dress that hugged every curve, the multi-hyphenate flaunted her best assets—as in, everything! She accessorized with ankle-strap stilettos and a black clutch and topped off her look with loose shoulder-length waves and a heavily lined glossy lip. Casper Smart accompanied Lopez at the festivities; the Fake Off host, 28, looked sharp in a baby-blue suit jacket with a white button-up shirt:

Jennifer Lopez celebrates her birthday at 1OAK in the hamptons with French Montana and Casper Smart wearing a tight see-through dress.
Credit: Splash News

JLo’s close friend Fat Joe was also in attendance. He posted pictures of the fiesta to Instagram:

Lopez seems to have been prepping for her big birthday all week. On Thursday, the girl from the Bronx posted a throwback picture of herself to show exactly how far she’s come.