Jennifer Lopez celebrated her 43rd birthday with beau Casper Smart as she was snapped walking hand-in-hand with Smart leaving their hotel in New York City. The singer/actress looked stunning in a form-fitting Tom Ford red dress with the signature gold shoulder to hip zipper detail. This dress has previously be seen on Jennifer Lawrence and Kate Beckinsale. Lopez wore her sexy dress with matching Christian Louboutin  ankle-strap pumps and a stingray Fendi clutch. Following a romantic dinner at NYC hotspot Cipriani, Smart, 25, blindfolded Lopez and led her to a surprise party on a luxury yacht for her birthday extravaganza.