JLo_CasperSmart_FrenchMontana Published July 27, 2015 at 601 × 480 in Jennifer Lopez & Casper Smart Celebrate JLo’s 46th Birthday at 1OAK 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.