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  • Kristen Bell sports a blue minidress at the 20th anniversary of Alzheimer’s Association’s ‘A Night At Sardi’s’ fundraiser and awards dinner at The Beverly Hilton Hotel in Beverly Hills, Calif. on March 21, 2012
  • Kristen Bell smiles on stage during the ‘Astro Boy’ panel at Comic-Con 2009 in San Diego on July 23, 2009
  • Kristen Bell and Freddie Highmore are all smiles during the ‘Astro Boy’ panel at Comic-Con 2009 in San Diego on July 23, 2009
  • Rumer Willis and Kristen Bell attend Comic-Con 2009 held in San Diego Convention Center on July 23, 2009
  • Kristen Bell and ‘90210’ star AnnaLynne McCord attend the Invisible Children’s ‘How It Ends’ lobbying campaign rally in Washington, D.C. on June 23, 2009
  • Kristen Bell steps out at Taste of Chocolate during the 10th Annual Maui Film Festival at the Four Seasons Hotel on June 19, 2009 in Wailea, Hawaii
  • Kristen Bell shows off her bikini bod in Maui, Hawaii on June 19, 2009
  • Kristen Bell arrives at the premiere of Warner Bros. Pictures’ ‘Hangover’ at the Chinese Theater on June 2, 2009 in Los Angeles, California
  • Kristen Bell arrives at the premiere of Warner Bros. Pictures’ ‘Hangover’ at the Chinese Theater on June 2, 2009 in Los Angeles, California
  • Kristen Bell arrives at the launch of Loomstate For Target Collection at the Big Red Sun on April 14, 2009 in Venice, California

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  • FilmMagic

    Kristen Bell sports a blue minidress at the 20th anniversary of Alzheimer’s Association’s ‘A Night At Sardi’s’ fundraiser and awards dinner at The Beverly Hilton Hotel in Beverly Hills, Calif. on March 21, 2012
  • Getty Images

    Kristen Bell smiles on stage during the ‘Astro Boy’ panel at Comic-Con 2009 in San Diego on July 23, 2009

  • Getty Images

    Kristen Bell and Freddie Highmore are all smiles during the ‘Astro Boy’ panel at Comic-Con 2009 in San Diego on July 23, 2009

  • Getty Images

    Rumer Willis and Kristen Bell attend Comic-Con 2009 held in San Diego Convention Center on July 23, 2009
  • WireImage

    Kristen Bell and ‘90210’ star AnnaLynne McCord attend the Invisible Children’s ‘How It Ends’ lobbying campaign rally in Washington, D.C. on June 23, 2009
  • Getty Images

    Kristen Bell steps out at Taste of Chocolate during the 10th Annual Maui Film Festival at the Four Seasons Hotel on June 19, 2009 in Wailea, Hawaii
  • FilmMagic

    Kristen Bell shows off her bikini bod in Maui, Hawaii on June 19, 2009
  • Getty Images

    Kristen Bell arrives at the premiere of Warner Bros. Pictures’ ‘Hangover’ at the Chinese Theater on June 2, 2009 in Los Angeles, California

  • Kristen Bell arrives at the premiere of Warner Bros. Pictures’ ‘Hangover’ at the Chinese Theater on June 2, 2009 in Los Angeles, California
  • Getty Images

    Kristen Bell arrives at the launch of Loomstate For Target Collection at the Big Red Sun on April 14, 2009 in Venice, California