Hayden Panettiere attends Diana Jenkins presents "Room 23" featuring photography by Deborah Anderson sponsored by Jenkins' Neuro Brands at the Peninsula Hotel on February 17, 2009 in Los Angeles, California.Jeff Vespa/WireImage.com - Tuesday, April, 7, 2009, 10:7 PM

Vanessa Hudgens and Hayden Panettiere attend the InStyle and Warner Bros Golden Globe Post-Party held at the Beverly Hilton hotel on January 11, 2009 in Beverly Hills, California. Stefanie Keenan/Getty Images - Tuesday, April, 7, 2009, 10:7 PM

Hayden Panettiere attends the 5th annual Alfred Mann Foundation Innovation & Inspiration Gala at Vibiana on November 2, 2008 in Los Angeles, California. David Livingston/Getty Images - Tuesday, April, 7, 2009, 10:7 PM

Hayden Panettiere attends Hollywood Entertainment Museum Honors The Cast Of "Heroes" held at the Esquire House on November 1, 2008 in Los Angeles, California.Jordan Strauss/WireImage.com - Tuesday, April, 7, 2009, 10:7 PM

Hayden Panettiere arrives at the 60th Primetime Emmy Awards held at Nokia Theatre on September 21, 2008 in Los Angeles, California. Frazer Harrison/Getty Images - Tuesday, April, 7, 2009, 10:7 PM

Hayden Panettiere arrives at the "Heroes" countdown to the Premiere event held at the Edison Lounge on Sunday September 7th, 2008 in Los Angeles, California.Jean-Paul Aussenard/WireImage.com - Tuesday, April, 7, 2009, 10:7 PM

Hayden Panettiere accepts the award for Choice TV Actress/Action Adventure during the 2008 Teen Choice Awards at Gibson Amphitheater on August 3, 2008 in Los Angeles, California.FOX - Monday, August, 4, 2008, 8:4 PM

Hayden Panettiere arrives at the Teen Vogue Young Hollywood Party at Vibiana.Jeff Vespa/WireImage.com - Friday, January, 4, 2008, 8:4 PM

Hayden Panettiere arrives at the 12th Annual Victoria's Secret Fashion Show at the Kodak Theater.Kevin Mazur/WireImage.com - Friday, January, 4, 2008, 8:4 PM

Hayden Panettiere poses in the press room for Z100's Jingle Ball 2007 at Madison Square Garden.Jim Spellman/WireImage.com - Friday, January, 4, 2008, 8:4 PM

Hayden Panettiere arrives at the Teen Vogue young Hollywood party held at Vibiana.Jean-Paul Aussenard/WireImage.com - Friday, January, 4, 2008, 8:4 PM

Ali Larter and Hayden Panettiere at David Semel's Pre-Emmy Party Hosted by 42 Below Vodka.Jesse Grant/WireImage.com - Friday, January, 4, 2008, 8:4 PM

Hayden Panettiere arrives at the GQ 2007 Men Of The Year celebration at Chateau Marmont.Steve Granitz/WireImage.com - Friday, December, 14, 2007, 9:14 PM

Actress Hayden Panettiere attends the HBO after party for the 59th Annual Primetime Emmy Awards at The Pacific Design Center on September 16, 2007 in Los Angeles, California.Williamson/WireImage.com - Monday, September, 17, 2007, 7:17 PM

Hayden Panettiere arrives at the 59th Annual Primetime Emmy Awards at the Shrine Auditorium on September 16, 2007 in Los Angeles, California.Jeff Vespa/WireImage.com - Sunday, September, 16, 2007, 11:16 PM

Hayden Panettiere arrives at the 59th Annual Primetime Emmy Awards at the Shrine Auditorium on September 16, 2007 in Los Angeles, California.Jeff Vespa/WireImage.com - Sunday, September, 16, 2007, 11:16 PM

Hayden Panettiere stars as Claire Bennet in Heroes.NBC/Mitchell Haaseth - Friday, August, 24, 2007, 11:24 PM

Hayden Panettiere at Nickelodeon's 20th Annual Kids' Choice Awards.Lester Cohen/WireImage.com - Tuesday, April, 24, 2007, 8:24 PM

Hayden Panettiere at Nickelodeon's 20th Annual Kids' Choice Awards.Lester Cohen/WireImage.com - Tuesday, April, 24, 2007, 8:24 PM

Hayden Panettiere at The Academy Of Television Arts & Sciences Presents An Evening With "Heroes." Albert L. Ortega/WireImage.com - Tuesday, April, 24, 2007, 8:24 PM

Hayden Panettiere at the 64th annual Golden Globe Awards.Steve Granitz/WireImage.com - Monday, January, 15, 2007, 11:15 PM

Hayden Panettiere at the 64th annual Golden Globe Awards.Steve Granitz/WireImage.com - Monday, January, 15, 2007, 11:15 PM

Hayden Panettiere at The 33rd Annual People's Choice Awards. Gregg DeGuireWireImage.com - Wednesday, January, 10, 2007, 8:10 PM

Hayden Panettiere at The 33rd Annual People's Choice Awards.Jesse Grant/WireImage.com - Wednesday, January, 10, 2007, 8:10 PM