Prince William and Kate visit London charity

Kate, Duchess of Cambridge, and Prince William visit the homeless charity Centrepoint in London on Dec. 21, 2011.

Pictures: Prince William and Kate

Britain's Prince William, Duke of Cambridge, and his wife, the Duchess of Cambridge, arrive at Centrepoint's Camberwell Foyer in London on Dec. 21, 2011. The charity provides housing and support to improve the lives of homeless young people aged 16-25.

Pictures: Prince William and Kate

Kate, Duchess of Cambridge, visits the homeless charity Centrepoint at its Camberwell Foyer center with Prince William on Dec. 21, 2011, in London.

Pictures: Prince William and Kate

Britain's Prince William, Duke of Cambridge, and his wife, the Duchess of Cambridge, arrive at Centrepoint's Camberwell Foyer in London on Dec. 21, 2011. Centrepoint is a national charity providing housing and support to improve the lives of homeless young people aged 16-25. Prince William is a patron of the organization.

Pictures: Prince William and Kate

Kate, Duchess of Cambridge, visits the homeless charity Centrepoint at its Camberwell Foyer location with Prince William on Dec. 21, 2011, in London.

Pictures: Prince William and Kate

Prince William, Duke of Cambridge, and his wife, Kate, Duchess of Cambridge, arrive at Centrepoint's Camberwell Foyer center in London on Dec. 21, 2011. Centrepoint is a national charity providing housing and support to improve the lives of homeless young people aged 16-25. Prince William is a patron of the organization.

Pictures: Prince William and Kate

Prince William, left, dances with Vanessa Boateng, center, as his wife, Kate, looks on during a reception at Centrepoint's Camberwell Foyer in London on Dec. 21, 2011. Centrepoint is a national charity providing housing and support to improve the lives of homeless young people aged 16-25. William is a patron of the organization.

Pictures: Prince William and Kate

Prince William and Kate, Duchess of Cambridge, visit the homeless charity Centrepoint at its Camberwell Foyer location on Dec. 21, 2011, in London.

Pictures: Prince William and Kate

Prince William and his wife Kate, Duchess of Cambridge, leave Centrepoint's Camberwell Foyer in London after a visit on Dec. 21, 2011. Centrepoint is a national charity providing housing and support to improve the lives of homeless young people aged 16-25. Prince William is a patron of the organization.

Pictures: Prince William and Kate

Kate, Duchess of Cambridge, leaves Centrepoint's Camberwell Foyer in London after a visit on Dec. 21, 2011. Centrepoint is a national charity providing housing and support to improve the lives of homeless young people aged 16-25. Her husband, Prince William, is a patron of the charity.

Pictures: Prince William and Kate

Prince William and his wife, Kate, Duchess of Cambridge, center, leave Centrepoint's Camberwell Foyer in London after a visit on Dec. 21, 2011. Centrepoint is a national charity providing housing and support to improve the lives of homeless young people aged 16-25. William is a patron of the charity.

Pictures: Prince William and Kate