Hayden Panettiere

THEN: Daytime TV was graced with a fresh new face in 1994, when Hayden Panettiere was cast as Sarah Victoria Roberts on "One Life to Live." Panettiere made it to primetime portraying Maddie Harrington on "Ally McBeal" and had a recurring part on "Malcolm in the Middle." But she rose to stardom faster than a speeding bullet when "Heroes" premiered in 2006. Soon fans learned that the key to saving the world was to save the ... more 

Hayden Panettiere

THEN: Daytime TV was graced with a fresh new face in 1994, when Hayden Panettiere was cast as Sarah Victoria Roberts on "One Life to Live." Panettiere made it to primetime portraying Maddie Harrington on "Ally McBeal" and had a recurring part on "Malcolm in the Middle." But she rose to stardom faster than a speeding bullet when "Heroes" premiered in 2006. Soon fans learned that the key to saving the world was to save the cheerleader -- Panettiere's character, Claire Bennet.

NOW: This year, Hayden Panettiere took on one of TV's biggest challenges, playing country music crooner Juliette Barnes on ABC's new series "Nashville." And she's proved to be a worthy adversary for Connie Britton's Rayna James. In addition to tackling the challenging task of playing a conflicted young star on the rise with an addicted mother and a complicated love life, Panettiere has stunned audiences with her impressive vocal talents. Her hard work has paid off: Panettiere scored a Golden Globe nomination for the show. less