I'm a fan of Heroes, however, I don't follow the activities of the actors - gossip and entertainment blogs aren't my cup of tea. The beautiful picture of Hayden Panettiere for Vanity Fair was found while I was searching for pin-ups. She made a series of pictures dressed as a pin-up for an editorial and the cover (I think) of the magazine in February. The image bellow is from Televisionista.

In June she was in the Entertainment Weekly editorial The EW 100: TV portrayed as a 1950's high school girl. The images are very cool too as you can check here, but I prefer the pin-up version.