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Jennifer Lopez Celebrates Her 43rd Birthday in New York City

Kevin Winter/Getty Images(NEW YORK) -- Jennifer Lopez was all smiles at her surprise party on Tuesday in New York, reports

The Bronx-born singer celebrated her 43rd birthday with boyfriend Casper Smart and dozens of friends and family aboard the Utopia II Superyacht in New York City.

Lopez was treated to a cake in the shape of a giant pink teddy bear.  "Happy birthday BEAR!" it read.  The couple lovingly refer to each other as bear.

Smart tweeted on Tuesday, "(yelling) HAPPY BIRTHDAY TO THE MOST BEAUTIFUL BEAR IN THE WORLD!!!!!!!!!!!!!!! LOVE U.. ') @JLo."

Lopez replied, "@BEAUcasperSMART LOL!! Thank You my sweet Bear!!!!!!!!!!!!!!!!!!!!!!!!!!!!!"

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