Jennifer Lopez wowed husband Marc Anthony with a surprise birthday party on a yacht.

The 'Do It Well' singer treated the birthday boy to a romantic meal at New York riverside eatery the Water Club on Sunday night (16.09.07).

Marc, 38, was stunned when a luxury yacht pulled up in front of the restaurant packed with his friends singing 'Happy Birthday'.

The couple boarded the yacht and partied the night away, and music could be heard from the boat until the early hours.

Meanwhile, Jennifer, 38, has revealed she is desperate to have a baby.

She said: "I love kids. I can't wait to have a baby, believe me. I'm ready and so is Marc. We're waiting for it to happen, but I guess it'll happen when God wants it."

Although she doesn't have children of her own, the singer-and-actress is enjoying being a stepmother to Marc's three children from two previous relationships - Ariana, 14, Cristian, six and four-year-old Ryan.

She revealed: "It's a blessing having them as part of my family. I call them my three little angels."