White House Halloween 2011

Workers put up Halloween decorations on the north lawn of the White House on Oct. 28, 2011, in Washington, D.C. President Barack Obama and first lady Michelle Obama will be hosting guests at the White House to celebrate Halloween.

Fake spider webs, pumpkins and gourds are seen along the driveway as Halloween decorations are set up on the North Lawn of the White House in Washington, D.C., on Oct. 28, 2011.

First Lady Michelle Obama, center, jumps for joy as she sees a child in costume while waiting for trick-or-treaters with President Barack Obama and her mother Marian Robinson, left, on the North Portico of the White House in Washington, DC., on Oct. 29, 2011.

President Barack Obama hugs a costumed child as first lady Michelle Obama looks on as they offer treats to trick-or-treaters to celebrate Halloween on the North Portico of the White House on Oct. 29, 2011.

President Barack Obama and first lady Michelle Obama offer treats to trick-or-treaters to celebrate Halloween on the North Portico of the White House on Oct. 29, 2011.

First Lady Michelle Obama hugs a costumed child as President Barack Obama offers treats to trick-or-treaters to celebrate Halloween on the North Portico of the White House on Oct. 29, 2011.

President Barack Obama, first lady Michelle Obama, and the first lady's mother Marian Robinson, offer treats to trick-or-treaters on the North Portico of the White House in Washington, D.C., on Oct. 29, 2011.

President Barack Obama and first lady Michelle Obama offer treats to trick-or-treaters to celebrate Halloween on the North Portico of the White House on Oct. 29, 2011.

A costumed greeter dressed as Spiderman plays with a young trick-or-treater dressed as the same character at the White House to celebrate Halloween on Oct. 29, 2011.

Costumed greeters welcome trick-or-treaters to the the White House to celebrate Halloween on Oct. 29, 2011, in Washington, D.C.

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