It was the gorgeous diva’s 46th birthday (yes, you read that right) last July 24 and she, of course, celebrated in style with her on-again, off-again beau Casper Smart, who held her hand upon their arrival to the event’s red carpet at Southampton’s club 1Oak. Also in attendance were close friends of the actress and singer, such as Thalía, Fat Joe, Khloe Kardashian’s ex, French Montana and Lola Milan, amongst others. Lopez appeared to be having a great time hanging in the DJ booth and dancing the night away.

Despite the star-studded event, it was JLo’s Bao Tranchi black dress with cap sleeves, and sheer cut-out panels that made everyone’s jaw drop and sparked a media frenzy. We knew Lopez looked amazing at 46, but this look took things to a whole other level. Jenny From the Block sported her semi-new short hair do, and paired the sexy dress with strappy sandals just in case she didn’t look stunning enough. Sources in attendance say at one point of the night, Smart had to ask the guests to stop taking pictures of his girl so she could enjoy her special night in peace.

Lopez most likely decided to celebrate her birthday in New York as she is in Manhattan filming her upcoming NBC police drama “Shades of Blue” at the moment.