The Heroes hottie Hayden Panettiere celebrated her 18th birthday by registering to vote through the Declare Yourself campaign’s on-line registration process.

While some newly-legal teens buy lotto tickets and go out clubbing, this girl decided to do her civil duty!

Hayden Panettiere digs around in the back of her jeans and picks her g-string wedgie out on the set of Heroes in Malibu on Monday.

It was an upcoming kissing scene with co-star Nick D’Agosto. Hayden and Nick took at least 10 takes to get the shot in the can.

Hayden Panettiere spent her weekend at the beach in a cute two-piece bikini with her boyfriend Stephen Colletti a guy from “Laguna Beach” in California on the beach in Malibu.

That’s kind of sexy. Which is what we have come to expect from Hayden Panettiere, who mercifully turns 18 in August.

Hayden Panettiere sings the song “Try” from the Bridge To Terabithia soundtrack at PBS’ A Capitol Fourth concert celebration at the U.S. Capitol Building in Washington, D.C.

The Academy Of Television Arts and Sciences (ATAS) presented an evening with Heroes yesterday. The two most beautiful Heroes ladies Ali Larter and Hayden Panettiere had a lot of fun on the red carpet. The event was held on April 23, 2007 at the Leonard Goldenson Theater, CA. Though Hayden Panettiere admits she is much more boring than her fellow stars like Lindsay Lohan or Hillary Duff, she looked great in a beach yellow dress and her beautiful smile.