The singer/actress reached the milestone on Friday (24Jul09) and to celebrate, Anthony arranged a secret bash in New York on Saturday night (25Jul09), without his wife's knowledge.
The Latino singer whisked the Hollywood star to the event in a grey Bentley sportscar, arriving outside the city's Edison Ballroom to hoards of screaming fans.
And when Lopez spotted a marquee with her nickname 'Lola' spelled out in gold lettering, she discovered her partner's plan and burst into tears. Anthony called the event An Evening for Lola in honour of his wife.
The star was greeted by pals including Liza Minnelli, Ricky Martin and producer LA Reid, as well as friends and family members who had flown in to help her celebrate.