Fergie is one sexy birthday girl!

The Black Eyed Peas lead singer celebrated her 37th birthday with friends and fans at 1 Oak Nightclub at Mirage in Las Vegas.

Before heading into the club, Fergie Tweeted:

    "Excited 2 celebrate my bday tonite at @1OAKLV w great friends in our @FergieFootwear enjoying delicious @VoliSpirits cocktails. C u there!!!"

Fergie Ferg, who brought along hunky hubby Josh Duhamel, rocked a form-fitting blue, pink and orange Givenchy dress.

We'll admit, those lady lumps are looking quite lovely!