U.S. actors Ryan Phillippe and Matthew McConaughey pose during a photocall promoting the movie 'The Lincoln Lawyer' in Berlin, April 6, 2011.
Singers Jay Chou and Wang Leehom pose after winning Most Popular Male Singer and Best Male Singer respectively at the first Global Chinese Golden Chart awards in Taipei April 9, 2011.
Hosts, presenters and recipients get covered in slime at the 24th annual Nickelodeon Kids' Choice Awards in Los Angeles.
Celebrities attend the 2011 annual Nickelodeon Kids Choice Awards in Los Angeles, California, April 2, 2011.
Canadian singer Justin Bieber performs during his concert at the Sportpaleis in Antwerp
Celebrity socialite Paris Hilton arrives to attend a news conference for the promotion of her shoe collection in Mexico City March 29, 2011
Jake Gyllenhaal and cast members attend the premiere of the film "The Source Code" in Hollywood.
Actor Tom Cruise poses with his wife and cast member Katie Holmes at the premiere of the television series "The Kennedys" at the Samuel Goldwyn theatre in Beverly Hills March 28, 2011.
Actress Helen Mirren poses as she makes hand and footprints outside Grauman's Chinese Theatre in Hollywood, Los Angeles, California March 28, 2011.
cast members attend the premiere of the film "Hop" in Los Angeles March 27,2011
Claudia Schiffer arrives for the Metropolitan Opera's premiere of "Le Comte Ory" at Lincoln Center in New York March 24, 2011.
Cast member Vanessa Hudgens blows a kiss at photographers at the premiere of "Sucker Punch" at the Grauman's Chinese theatre in Hollywood, California March 23, 2011.