SPOTTED: The age-defying Jennifer Lopez celebrating her 46th birthday at 1OAK in the Hamptons over the weekend. The entertainer was joined by her on again, off again boyfriend, Casper Smart.  JLo showed off her incredibly toned body in a sheer, skintight, black Bao Tranchi  dress, with strategically-placed cutouts.  Her guests enjoyed the night and sipped on gluten-free Summer cocktails provided by CÎROC Vodka.

Casper Smart and French Montana huddled around birthday girl Jennifer Lopez as she celebrated her 46th birthday at 1OAK in the Hamptons over the weekend where guests sipped on gluten-free Summer cocktails provided by CÎROC Vodka.