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On Saturday, Fergie celebrated her 37th birthday at 1 Oak Nightclub in Vegas with Voli Vodka, Ne-Yo and plenty of friends.

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The event was a belated birthday party, as Fergie was born on March 27, but the singer revealed that the timing was planned to give her more time with hubby Josh Duhamel.

"This is my birthday party for all my friends and family but we had one at home, because I wanted to stay home on my birthday," said Fergie. The singer then gushed, "He had balloons and flowers and a cake."

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Click the video to see Fergie shake her lady humps while Ne-Yo rocks the mic.