Britain's Prince William, center, and his bride-to-be Kate Middleton, second right, react outside Belfast City Hall, Belfast during their visit to Northern Ireland Tuesday March 8, 2011. Prince William and Kate Middleton traveled to Belfast for their first official visit to Northern Ireland before their April wedding. Police kept watch from the rooftops for a visit that brought the center of Belfast to a standstill.   (AP Photo/Niall Carson, pool)

Photo by: Niall Carson

Britain's Prince William, center, and his bride-to-be Kate Middleton, second right, react outside Belfast City Hall, Belfast during their visit to Northern Ireland Tuesday March 8, 2011. Prince William and Kate Middleton traveled to Belfast for their first official visit to Northern Ireland before their April wedding. Police kept watch from the rooftops for a visit that brought the center of Belfast to a standstill. (AP Photo/Niall Carson, pool)