Beyonc shows off her flat stomach in body-hugging dress at Michelle Obama fundraiser

New mother Beyonc shows off her flat stomach and tiny waist in a body-hugging dress at Michelle Obama's fundraiser

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UPDATED:

10:01 GMT, 20 March 2012

She gave birth to her first child just over two months ago, but Beyonc Knowles looks like she's already back to her pre-pregnancy shape.

The 30-year-old singer looked stunning in a figure-hugging navy blue Victoria Beckham dress tonight as she stepped out in Manhattan to attend a fundraising event hosted by First Lady Michelle Obama.

Her stomach looked unnaturally flat for a woman who just gave birth, but Beyonc hasn't lost her curves.

Blue for Ivy: The new mother is attending a fundraising event for President Obama at the Greenwich Hotel

Blue for Ivy: The new mother is attending a fundraising event for President Obama at the Greenwich Hotel

Looking good B! Beyonc Knowles arrives at Michelle Obama's fundraiser tonight in New York City

Blue for Ivy: The new mother is attending a fundraising event for President Obama at the Greenwich Hotel

Blue for Ivy: The new mother is attending a fundraising event for President Obama at the Greenwich Hotel

She still showed off her stunning
shape in the form-fitting Victoria Beckham frock, managing to look both
sexy and elegant at the same time.

She accessorised with two beaded necklaces, including one with a pendant shaped like an eagle.

Her bright blue nail varnish, blue
accents on her shoes and the colour of her dress were clearly a nod to
her newborn, Blue Ivy.

Big wave: The President's wife Michelle Obama was seen waving as she made her way into the fundraiser

Big wave: The President's wife Michelle Obama was seen waving as she made her way into the fundraiser

Though her infant couldn't be with her for the swanky event, she was still there in spirit.

Beyonc did, however, join mother Tina Knowles at the cocktail reception and dinner inside Manhattan's Greenwich Hotel.

The reception, which is being hosted
by the First Lady, as well as Robert De Niro and his wife, Grace
Hightower, will raise funds for Obama's re-election campaign.

Nipped in: The singer's waist is tiny and she has quickly snapped back into shape since the birth of her daughter

Nipped in: The singer's waist is tiny and she has quickly snapped back into shape since the birth of her daughter

The expensive event is $2,000 a head.

Earlier in the day the singer and
daughter Blue Ivy had a visited from her old bandmate and close friend
Kelly Rowland who popped by Beyonc's apartment in New York.

Meanwhile, it was also revealed today that Beyonc has plans to return to the stage.

Blue for blue: Beyonce wore blue nail varnish, a blue dress and even had blue accents on her shoes

Blue for blue: Beyonce wore blue nail varnish, a blue dress and even had blue accents on her shoes

The singer announced her intention to perform three concerts in Atlantic City this coming May.

She will perform as part of the unveiling of the $2.4 billion Revel Resorts over Memorial Day weekend.

Her husband, rapper Jay-Z, also owns the 40/40 club in Atlantic City.

Protective: Jay Z kept an eye on his wife as they left Nobu

Protective: Jay Z kept an eye on his wife as they left Nobu

Smart: While Beyonc kept smart for dinner, Jay-Z was in his trademark causal clothes

Smart: While Beyonc kept smart for dinner, Jay-Z was in his trademark causal clothes

Checking in: Earlier in the day the singer's close friend and former bandmember Kelly Rowland visited her apartment

Checking in: Earlier in the day the singer's close friend and former bandmember Kelly Rowland visited her apartment