Katy Perry attends the premiere of “The Smurfs” at the Ziegfeld Theater on July 24, 2011 in New York City. (Photo by Jemal Countess/Getty Images)

Renaud Lavillenie of France in action while competing in the Mens Pole Vault during the Air Show “Berlin fliegt!” at Brandenburger Tor on August 12, 2011 in Berlin, Germany. (Photo by Joern Pollex/Bongarts/Getty Images)

Cannabis cigarettes at the growing facility of the Tikun Olam company on March 7, 2011 near the northern city of Safed, Israel. In conjunction with Israel's Health Ministry, Tikon Olam are currently distributing cannabis for medicinal purposes to over 1800 people in Israel.

Tara West signals to her partner Natalie Cook during the Bronze final match during the Australian Beach Volleyball Championships at Glenelg Beach on March 13, 2011 in Adelaide, Australia.

The delegates arrive at the Great Hall of the People before a plenary session of the National People's Congress on March 11, 2011 in Beijing, China. The NPC will take place until March 14. (Photo by Feng Li/Getty Images)

Actor Bruce Willis and wife Emma Heming arrive at the premiere of the HBO documentary 'His Way' at Paramount Studios on March 22, 2011 in Hollywood, California.

Sebastian Vettel of Germany and Red Bull Racing tries his hand at sheep shearing as he visits a local farm during previews to the Australian Formula One Grand Prix on March 23, 2011 in Melbourne, Australia.

Regina Halmich and Sergiy Plyuta perform during the 'Let's Dance' TV show at Coloneum on March 23, 2011 in Cologne, Germany.