Prince Harry prepares his Apache to go out on a mission on October 25, 2011 in El Centro, California. Ex Crimson Eagle is the final conversion training for Army Air Corps Apache pilots, the first part takes place in Naval Air Facility (NAF) El Centro, California before moving to Gila Bend in Arizona for the live firing phase. This is because the terrain here is very similar to that of Afghanistan, making it extremely realistic and demanding for the pilots. The pilots which include Capt Wales (Prince Harry) have had over 12 months training to get to this point. where they now face 2 and a half months of tactics, flying and live firing to qualify them as Limited Combat Ready Apache pilots. (Photo by Sgt Russ Nolan RLC/MoD via Getty Images)

Bruno Senna of Brazil and Williams drives during day four of Formula One winter testing at the Circuito de Jerez on February 10, 2012 in Jerez de la Frontera, Spain. (Photo by Paul Gilham/Getty Images)

A Christie's auction house employee walks past a piece of work entitled “The Black Horse” by Berlinde De Bruyckere during a press preview of Post War And Contemporary Art at Christies auction house on February 10, 2012 in London, England. The piece makes up part of a selection of work by artists including Lucien Freud, Francis Bacon, Gilbert and George and Roy Lichtenstein and goes under the hammer at Christies Post War And Contemporary Art Auction on February 14. (Photo by Dan Kitwood/Getty Images)

A policeman walks past graffiti that says “Global civil war, don't be slaves” during a demonstration involving thousands of civilians on February 10, 2012 in Athens, Greece. The demonstrations took place during a 48-hour long strike held in protest against the austerity measures which are set to be put in place by the Greek coalition government in a bid to meet the conditions set by the Eurozone for a financial bailout. (Photo by Milos Bicanski / Getty Images)

A U.S. Customs and Border Protection agriculture specialists uses a magnifying glass to inspect flowers for any foreign pests or diseases at the UPS facility at Miami International Airport February 10, 2012 in Miami, Florida. As Valentine's Day approaches the airport will see about 85 percent of all flowers imported into the United States. Most of the flowers come from South American growers. (Photo by Joe Raedle/Getty Images)

Emma Watson attends special pre-Orange British Academy Film Awards party, hosted by Lancome at The Savoy Hotel on February 10, 2012 in London, England. (Photo by Tim Whitby/Getty Images)

Female students shout slogans in front of the Cairo University during a protest against the military rulers of the country on February 11, 2012 in Cairo, Egypt. Today is the first anniversary of the resignation of the former Muhammad Hosni Mubarak after his 30-year term on 11 February last year. The poor economic condition of the country and the unrest in the past are a threat to the transition to a democracy. (Photo by Carsten Koall/Getty Images)

Myanmar opposition leader Aung San Suu Kyi takes her campaign for a parliament seat to the southern constituency she hopes to represent February 11, 2012 in Kaw Hmu, Myanmar. Suu Kyi is traveling on her campaign ahead of the April 1 by-elections. Her decision to stand for a seat in parliament is the latest sign of dramatic political changes taking place in the country. (Photo by Paula Bronstein/Getty Images)

Models pose at the Ainsley fall 2012 presentation during Mercedes-Benz Fashion Week at Exit Art on February 11, 2012 in New York City. (Photo by Ilya S. Savenok/Getty Images)

Recording artist Rihanna attends the Roc Nation Pre-GRAMMY Brunch at the Soho House on February 11, 2012 in West Hollywood, California. (Photo by Frederick M. Brown/Getty Images)

Singer Britney Spears and TV personality Kim Kardashian attend Clive Davis and the Recording Academy's 2012 Pre-GRAMMY Gala and Salute to Industry Icons Honoring Richard Branson held at The Beverly Hilton Hotel on February 11, 2012 in Beverly Hills, California. (Photo by Larry Busacca/Getty Images For The Recording Academy)

A plane performs aerobatic moves during the media preview ahead of the Singapore Airshow 2012 at Changi Exhibition centre on February 12, 2012 in Singapore. (Photo by Chris McGrath/Getty Images)

Singer Jessie J and singer/actress Brandy attend Clive Davis and the Recording Academy's 2012 Pre-GRAMMY Gala and Salute to Industry Icons Honoring Richard Branson held at The Beverly Hilton Hotel on February 11, 2012 in Beverly Hills, California. (Photo by Larry Busacca/Getty Images For The Recording Academy)

LA Coroners leave the Beverly Hilton Hotel possibly carrying the body of the singer Whitney Houston in the early hours of February 12, 2012 in Los Angeles, CA. Singer and film star Whitney Houston aged 48 has died in her hotel room at the Beverly Hilton Hotel. (Photo/Toby Canham/Getty Images)

Flower tributes are left at the Beverly Hilton Hotel in the early hours of February 12, 2012 in Los Angeles, CA. (Photo/Toby Canham/Getty Images)