Forty-six never looked so flawless! Jennifer Lopez rang in her 46th birthday on Saturday, July 25, at 1OAK in Southampton, N.Y., with a big bash.
The Grammy winner looked fierce in a racy black Bao Tranchi cutout dress with an open back and sheer paneling on the sides to show off her underwear-free booty.
Inside the party, Lopez's longtime producer and mentor Benny Medina made the toast and brought out a big cake for the birthday girl while guests sipped on gluten-free summer cocktails from Ciroc vodka.
"She was dancing all night, and she looked amazing," a source tells Us Weekly.
At one point guests were incessantly taking photos of Lopez, and her on-off love Casper Smart stepped in to save her. The source tells Us that Smart told the guests to leave Jenny From the Block alone so she was free to dance and have a good time.
"He had his arm around her, and the were tight all night," the source notes.
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