6. Hayden Panettiere
Hometown: Palisades, New York
Role: Juliette Barnes in Nashville (ABC; premieres Wednesday, October 10th, at 10/9 Central)
It’s not news that this 23-year-old is uberhot, but her new role on Nashville not only showcases her stellar legs—but also her ability to carry a tune. Panettiere’s sassy character, Juliette Barnes, climbs to the top of the country ladder, but she's also troubled by a past that could get in her way. (Drama!) Also on the show is 23-year-old Aussie actress Clare Bowen, who might challenge Barnes in the talent and looks departments. (More drama!) So just like you promised your girl you watched Heros for the action, get ready to swear to her that Nashville is all about...the singing?