Hayden Panettiere is a Hamburg Hottie

Hayden Panettiere hits the red carpet with her boyfriend, Ukranian boxer Wladimir Klitschko, at the Best of Musical Gala 2010 at the Color Line Arena in Hamburg, Germany on Saturday (January 30).

The 20-year-old Heroes actress, who is 5′1″, posed for photos with her 33-year-old beau, who is 6′6″!

Hayden chatted with Us Weekly at the premiere of Temple Grandin earlier this week and shared that she felt “tired of being a blonde.”

“It’s fun to change things up,” Hayden added, “and I feel I don’t have to overcompensate as much personality-wise when I have red hair as I do with blonde hair.”

Hayden Panettiere American girl face

With her all-American-girl face, rockin' body and luscious lips, Hayden Panettiere is the cover girl for Neutrogena and was one of the milky-lipped models for the "Got Milk?" ad campaigns. In 2007, the Heroes star officially signed to William Morris Agency; apparently, we aren't the only fans of Hayden Panettiere's sex appeal. [askmen]

Hayden Panettiere American girl face

n 2008, Hayden Panettiere continued kicking ass in another great season of Heroes and starred in the movie Fireflies in the Garden. With all her big- and small-screen success, Forbes estimated her 2007 income at around $2 million.

Hayden Panettiere cover girl for Neutrogena

Hayden Panettiere sexy picture
Also in 2008, Hayden Panettiere made AskMen.com's Top 99 Most Desirable Women list, landing at No. 51.