Prince William and wife Kate welcome Olympics torch to palace

Prince William (2dL), Duke of Cambridge and Catherine (3dL), Duchess of Cambridge stand next to Prince Harry (2dR) during a torch relay from Wai-Ming (L) to John Hulse (R) at the Buckingham Palace in London, on July 26, 2012 during a torch relay on the eve of the London 2012 Olympic Games. (AFP PHOTO / POOL / IAN WEST)

United Nations Secretary General Ban Ki-moon (L) has his Olympic Torch 'kissed' by Anthony Page (R) as Mr. Ban sets off on the London 2012 Olympic Torch Relay from Parliament Square and onto Constitution Hill on July 26, 2012 in London, England. The Olympic Flame was on day 69 of a 70-day relay, the penultimate leg of the flames journey before being taken to the Olympic Park for the opening ceremony. (AFP PHOTO/WILL OLIVER)

Prince William (2dL), Duke of Cambridge, Catherine (C), Duchess of Cambridge and Prince Harry (R) wait with children for the arrival of the Olympic Flame before a torch relay at the Buckingham Palace in London, on July 26, 2012 on the eve of the London 2012 Olympic Games. (AFP PHOTO / POOL / IAN WEST)

Chairman of the Board of Directors and CEO of ArcelorMittal, Lakshmi Mittal carries the Olympic Flame in London on July 26, 2012, one day before the start of the London 2012 Olympic Games. (AFP PHOTO/ MANAN VATSYAYANA)

British Prime Minister David Cameron is cheered by children as they wait before the arrival of the Olympic flame in Downing street for a torch relay in London on July 26, 2012 on the eve of the opening of the London 2012 Olympic games. (AFP PHOTO / ODD ANDERSEN)

British singer Katy B performs at the Olympic Torch Relay Finale Concert in Hyde Park, central London on July 26, 2012. (AFP PHOTO/CARL COURT)

Amid loud cheers from hundreds of his fans, Bollywood megastar Amitabh Bachchan carried the Olympic torch at Southwark, a day before the opening ceremony of the sporting spectacle. (AFP Photo)

The 69-year-old actor in a white track suit covered a 300-metre distance running and walking occasionally and waved at the cheering crowd, as the Olympic Games torch relay entered the 69th day on July 26. (AFP Photo)

Ahead of his participation in the relay, Big B said it was a "proud moment" for him and the country to be invited to carry the Olympic flame. (AFP Photo)

Amitabh Bachchan runs for the Olympic flame in London. (AFP Photo)

Former England cricket captain Michael Vaughan carries the Olympic Flame on the Torch Relay leg through Hillingdon, England. (AP Photo)

Scottish tennis player Andy Murray hands over the Olympic flame to U.S. tennis player Venus Williams at the All England Tennis Club in Wimbledon, ahead of the 2012 Summer Olympics. (AP Photo)

Amelia Hempleman-Adams poses with the Olympic Flame on top of a London Eye pod on the Torch Relay leg through London. (AP Photo)

A Sea King helicopter carrying the Olympic Flame flies over London's Tower Bridge as British Royal Marine Commando Martyn Williams prepares to abseil from the helicopter with the Olympic Flame down to the Tower of London. The Olympic flame made a dramatic arrival in London on Friday to tour the capital before it plays a starring role in the opening ceremony in one week's time. (AFP PHOTO / CARL COURT)

British Royal Marine Commando Martyn Williams abseils with the Olympic Flame from a helicopter down to the Tower of London. (AFP PHOTO / CARL COURT)

British Royal Marine Commando Martyn Williams (R) hands the Olympic Flame to the next runner Dame Kelly Holmes (L) after its arrival. (AFP PHOTO / CARL COURT)

The flame was suppose to spend the night locked up in the Tower of London, the 11th century fortress where Queen Elizabeth II keeps her ceremonial jewels and where the Olympic medals are also being stored for safekeeping. (AFP PHOTO / Andrew Cowie)

British retired champion Dame Kelly Holmes pose for the photographers with the Olympic flame at the Tower of London. (AP Photo)

British Royal Marine Commando Martyn Williams (R) poses for pictures with Dame Kelly Holmes after handing over the Olympic Flame to Holmes at the Tower of London. (AFP PHOTO / CARL COURT)

London Olympic chairman Sebastian Coe said he was "delighted" to welcome the flame at the end of the 63rd day of the relay, adding, "It's made an extraordinary journey." Britain's General the Lord Richard Dannatt, Constable of the Tower of London, holds the Olympic Flame after its arrival by helicopter. (AFP PHOTO / Andrew Cowie)

U.S. Olympian sprinter Michael Johnson passes the Olympic Flame to torchbearer Emilia Clifford, 19, at Stonehenge, England on July 12, 2012. Johnson, who won four Olympic gold medals and eight world championship gold medals, currently holds the world and Olympic records in the 400 meters and 4 x 400 meters relay. The Olympic Torch is being carried around England in a relay of torchbearers to make its way to the London 2012 Olympic Games opening ceremony. (AP Photo)

U.S. Olympian sprinter Michael Johnson poses for the photographers holding the Olympic Flame at Stonehenge, England. (AP Photo)

Britain's Queen Elizabeth II, her husband Prince Philip, London 2012 Chairman Sebastian Coe and seventy four year-old Olympic torch bearer Gina Macgregor watch as torch bearer Phil Wells leaves carrying the Olympic flame at Windsor Castle, Windsor, England on July 10, 2012. (AP Photo)

This image made available by LOCOG shows former Olympic gold medalist and torchbearer 030 Sir Steve Redgrave carrying the Olympic Flame on a boat on the River Thames on the Torch Relay leg between Wallingford and Henley on Thames, England on July 10, 2012. (AP Photo)

Zachary Franklin carrying the Olympic Flame on a raft down the Lee Valley White Water Centre on the Torch Relay leg between Harlow and Waltham Cross, north of London. (AP Photo)

Formula One driver and torchbearer 001 Lewis Hamilton holds the Olympic flame before his Torch Relay leg through Luton, England on July 9, 2012. (AP Photo)

Former Chelsea footballer Didier Drogba runs with the 2012 London Olympic torch in the streets of Swindon, West of London on May 23, 2012. (AFP Photo)

Zara Phillips, granddaughter of Britain's Queen Elizabeth II, carries the 2012 London Olympic Flame at Cheltenham Racecourse in central England on May 23, 2012. (AFP Photo)

Will.i.am of the Black Eyed Peas passes the Olympic flame to shooter Emma Fowler in Taunton on May 21, 2012. The Black Eyed Peas star was cheered on by thousands of people as he ran through Taunton carrying the flame. The US-born music producer was a surprise addition to the line-up on day three of the relay. (AP Photo)

Former skeleton racer and Olympic gold medallist Amy Williams carries the Olympic flame on the leg between Yeovil and Somerton in south west England on May 22, 2012. (AP Photo)

British shooter Georgina Geikie carries the Olympic flame through the village of Okehampton, England, as crowds gather to watch on May 21, 2012. (AP Photo)

Former rugby player Garnet Mackinder carries the Olympic flame through the streets of Exeter, England on May 20, 2012. (AP Photo)

Leah Burch, center, carrying the Olympic flame through the town of Exeter on the leg between Plymouth and Modbury, England on May 20, 2012. (AP Photo)

British television presenter Ben Fogle rises in helium filled balloon, holding the Olympic flame in a miner's lamp inside the rainforest biodome at the Eden Project, near St Austell, England on May 19, 2012. (AP Photo)

Johanna Dickinson carrying the Olympic torch on the beach, looking out to St Michael's Mount, during the leg of the torch relay between Newlyn and Marazion in south west England Saturday May 19, 2012. The torch will be carried all over the British Isles by 8,000 chosen volunteers, mostly local heroes. Its 8,000-mile (12,875-kilometer) journey will linger on the iconic sites - Big Ben, Stonehenge, the white cliffs of Dover - and speed past less appealing areas. It ends on July 27 at the Olympic Stadium in London. (AP Photo)

England footballer David Beckham holds the Olympic torch during the ceremony to mark the arrival of the Olympic flame to Britain from Greece at RNAS Culdrose, Cornwall on May 18, 2012. (AP Photo)

Britain's Princess Anne steps off the aircraft carrying the Olympic flame in a lantern as she arrives at RNAS Culdrose, Cornwall, from Greece on May 18, 2012. (AP Photo)

The Olympic torch was formally handed over from Greece to organisers of the London 2012 Olympic Games in a ceremony in Athens. (AFP Photo)

Princess Anne, Queen Elizabeth II's daughter, who is a former Olympian and current British Olympic Association president, headed a British delegation that included London 2012 chairman Sebastian Coe, Olympics Minister Hugh Robertson and London Mayor Boris Johnson. (AFP Photo)

Princess Anne of Britain hands over the torch with the olympic flame to be prepared for the journey to London during the handover ceremony of the Olympic flame for the 2012 London Olympics at the Panathenaic stadium in Athens. (AFP Photo)

Britain's Princess Anne of Britain holds the torch with the Olympic Flame during the handover ceremony of the Olympic flame. (AFP Photo)

Actress Ino Menegaki at the role of the high priestess holds the torch with the flame during the handover ceremony of the Olympic flame for the 2012 London Olympics at the Panathenaic stadium in Athens. (AFP Photo)

Actress Ino Menegaki holds up the torch during the handover ceremony of the Olympic flame for the 2012 London Olympics. (AFP Photo)

Actress Ino Menegaki hands the torch with the flame to the Greek Olympic Committee president, Spyros Kapralos during the handover ceremony of the Olympic flame for the 2012 London Olympics at the Panathenaic stadium in Athens. (AFP Photo)

Greek presidental evzoni guards pass by Greek, Olympic and British flags during the handover ceremony of the Olympic flame for the 2012 London Olympics at the Panathenaic stadium in Athens. (AFP Photo)

Greek presidental evzoni guards pass by spectators during the handover ceremony of the Olympic flame for the 2012 London Olympics at the Panathenaic stadium in Athens. (AFP Photo)

The last torchbearers, Olympic gold medalists , Greek weightlifting athlete Pyrros Dimas (R) and Chinese gymnastics athlete, Liu Ning hold the torch with the Olympic flame during the handover ceremony of the Olympic flame for the 2012 London Olympics at the Panathenaic stadium in Athens. (AFP Photo)