A year ago at this time, few people knew who Hayden Panettiere was, let alone how to pronounce her last name (pen-eh-TEER).

Yet the 17-year-old has become a certified Hollywood "it" girl, starring in NBC's smash hit, Heroes, as well as in various films and launching a singing career!

Posted in: Hayden Panettiere

She's hot. She's on a hit TV series. She's 17! That's right, Heroes star Hayden Panettiere has got it going on and she's not afraid to let the world know it, wearing a "Little Miss Bad" sweatshirt - and a mischievous grin - as she strutted through LAX Tuesday:

Posted in: Hayden Panettiere

The 15 minutes of fame may be ticking away for J.R. Rotem, but he's doing the best to make the most of every second.

First he was seen smooching Britney Spears, leading many to believe there could be a relationship brewing there. Alas, that appears to have been a one-shot deal - but J.R., whose real name is Jonathan, didn't let that stop him from chasing some underage tail.

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Hayden Panettiere Biography

Hayden: InStyle UK Photo
Hayden Panettiere is a pretty and talented young star. You might know her from Heroes, though she has also starred in more than a dozen... More »
Born
Birthplace
Palisades, New York
Full Name
Hayden Leslie Panettiere