Actor and former WWE Superstar Dwayne "The Rock" Johnson, left, reality television star Nicole "Snooki" Polizzi and WWE Superstar John Cena participate in a Wrestlemania XXVII press conference at the Hard Rock Cafe, March 30, 2011, in New York.
Reality television star Nicole "Snooki" Polizzi participates in a Wrestlemania XXVII press conference at the Hard Rock Cafe, March 30, 2011, in New York.
Actor and WWE Superstar Dwayne "The Rock" Johnson participates in a Wrestlemania XXVII press conference at the Hard Rock Cafe, March 30, 2011, in New York.
Paris Hilton poses for a photo with fans during her autograph signing session at a Sears in the Perisur Mall of Mexico City, Mexico, March 29, 2011. Hilton is in Mexico to promote her new shoe line.
Paris Hilton turns her camera on the press gathered for her autograph session at a Sears in the Perisur Mall of Mexico City, Mexico, March 29, 2011. Hilton is in Mexico to promote her new shoe line.
Canadian singer Justin Bieber performs on stage in Paris, March 29, 2011.
Siblings Julianne Hough, left, and Derek Hough, professional dancers who have competed with celebrities on "Dancing with the Stars," ride the Matterhorn Bobsleds at Disneyland in Anaheim, Calif., on Tuesday, March 29, 2011.
Actors Dustin Ingram and Kim Cattrall attend a screening of "Meet Monica Velour" in New York, March 29, 2011.
Actors Michelle Williams, left, and Zoe Kazan attend the Cinema Society screening of "Meek's Cutoff" in New York, March 28, 2011.
From left, Octavia Spencer, Bryce Dallas Howard, Viola Davis and Emma Stone, cast members in the upcoming film "The Help," pose onstage during the "State of the Industry" event at CinemaCon 2011, the official convention of the National Association of Theater Owners, March 29, 2011, in Las Vegas.
Actor Hugh Jackman, from the film, "Real Steel," poses backstage at CinemaCon, March 29, 2011, in Las Vegas.
Jason Segel, a cast member and co-writer of the upcoming Disney film "The Muppets," poses for a portrait backstage at CinemaCon 2011, March 29, 2011, in Las Vegas.
Musician Courtney Love attends the premiere of "Hit So Hard" at the Museum of Modern Art on March 28, 2011, in New York.
Former Hole bandmates, from left, Eric Erlandson, Patty Schemel, Courtney Love and Melissa auf der Maur attend the premiere of "Hit So Hard" at the Museum of Modern Art, March 28, 2011, in New York.
Actors Gary Oldman and Colin Firth with their Empire Icon and Best Actor awards respectively at the Empire Film Awards at the Grosvenor House Hotel in London, March 27, 2011.
British actress Keira Knightley attends the Empire Awards at the Grosvenor House Hotel in London, March 27, 2011.
Actor Michael Douglas, center, a U.N. Messenger of Peace, speaks during the inauguration ceremony of a new installation of civil society petitions calling for the abolition of nuclear weapons, at United Nations Headquarters, March 24, 2011. At left is United Nations Secretary-General Ban Ki-Moon. The man at right is unidentified.
Diane Kruger attends the Green Auction: A Bid to Save the Earth at Christie's in New York, March 29, 2011.
Nicki Minaj attends the Green Auction: A Bid to Save the Earth at Christie's in New York, March 29, 2011.
In this image provided by Perez Hilton, Dita Von Teese, left, and Hilton pose for a photo during his birthday celebration on March 26, 2011, in Los Angeles.
In this image provided by Perez Hilton, the celebrity blogger blows out the candles on his birthday cake, as actress Selena Gomez looks on during his birthday celebration, March 26, 2011, in Los Angeles.
James Marsden arrives at the premiere of his new film, "Hop," in Universal City, Calif. March 27, 2011.
Actor Hank Azaria arrives at the premiere of the feature film "Hop" in Universal City, Calif. on March 27, 2011.
Hugh Laurie arrives at the premiere of the feature film "Hop" in Universal City, Calif., on March 27, 2011.
Russell Brand arrives at the premiere of "Hop" in Universal City, Calif., March 27, 2011.
Actress Kaley Cuoco arrives at the premiere of "Hop" in Universal City, Calif., March 27, 2011.
Actor Tom Hanks films a scene on the set of "Extremely Loud and Incredibly Close" in New York's Central Park, March 22, 2011.
Actor Tom Hanks, center, talks to actor Thomas Horn, who plays his son on the set of "Extremely Loud and Incredibly Close" in New York's Central Park, March 22, 2011.
Actress Hilary Duff talks to students about the Blessings in a Backpack program during an assembly at Public School 61 in Indianapolis, March 22, 2011. Duff helped start the program for children who get their best meals at school. They receive backpacks of food every Friday to take home and share with their families.