Jennifer Lopez throws Marc Anthony surprise 40th

Jennifer Lopez threw husband Marc Anthony a surprise 40th birthday party at the weekend.

The 39-year-old actress arranged a sexy 1940s Cuban-themed bash - featuring a performance by burlesque dancer Dita Von Teese - and managed to keep it a secret by telling Marc she was going to be too tired to celebrate his birthday because she was competing in her first triathlon on Sunday (14.09.08).

Jennifer said: "Marc kept asking me, 'What are we going to do for my birthday?' I told him it was such a busy weekend, that I might not be able to do anything."

After the actress-and-singer finished the Nautica Malibu Triathlon in California she jumped on a plane to New York for the party, telling her husband they were travelling to the city to attend a dinner celebrating their friend Katie Holmes' upcoming Broadway debut in 'All My Sons'.

Jennifer added to People magazine: "I can't believe we pulled it off. He was so blown away."

The bash was held at the exclusive Bowery Hotel, and included a salsa orchestra, mojito cocktails and showgirls in feather headdresses. Party planner Liberty Woodman, who helped Jennifer organise the event, said: "She wanted a sexy vibe with the casino and showgirls."

Jennifer - who has six-month-old twins Max and Emme with Marc - sang a sexy rendition of her hit 'My Man' for her spouse before the couple and their children headed off for a holiday in Italy and Greece.